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Sample records for autonomous potentiometer las

  1. The electro-chemical tests and the programmable autonomous potentiometer; Las pruebas electroquimicas y el potenciostato autonomo programable

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Ochoa, Esteban Miguel; Salazar Cruz, Sergio R.; Aguilar Soto, Armando; Ley Koo, Marcos [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1997-12-31

    The development of a programmable autonomous potentiostat is described as an instrumentation means for voltage and current measurement, considering that one of the main problems to solve is the metallic components corrosion. Also the electro-chemical tests that can be performed with this instrument are described, as well as some possible application [Espanol] Se describe el desarrollo de un potenciostato autonomo programable como medio de instrumentacion para medir voltajes y corrientes, tomando en cuenta que uno de los principales problemas por resolver es la corrosion de sus componentes metalicos. Se describen ademas las pruebas eletcroquimicas que pueden realizarse con este instrumento, asi como alguna posible aplicacion

  2. Capacitance-coupled wiper increases potentiometer life

    Science.gov (United States)

    Dimeff, J.

    1968-01-01

    Capacitively-coupled wiper reduces the friction between the sliding contact and the potentiometer element in conventional potentiometers. A small preamplifier employed close to the wiper reduces errors caused by output cable capacitance. The device is friction free with resultant low wear and has high speed and high resolution.

  3. [The application and programming of digital potentiometers in medical instruments].

    Science.gov (United States)

    Yang, Shao-zhou; Wang, Sheng-jun; Chen, Hong-wen

    2002-11-01

    Digital potentiometers have been used in medical instruments. This paper describes the structure and principle of a digital potentiometer, especially its interfacing with a single chip processor and its programming. PMID:16104330

  4. Autonomía:derecho-obligación. “Recursos y redes de apoyo al servicio de las personas”

    OpenAIRE

    García Arribas, Andrea

    2014-01-01

    En este trabajo realizaremos un estudio sobre la autonomía que mantienen las personas mayores en las residencias, y la implicación de las familias en el mantenimiento y cuidado de las personas institucionalizadas. Esta valoración formará parte de un programa cuyo objetivo es promocionar dicha autonomía con la ayuda y colaboración de familiares e institución. Actualmente, existen programas y proyectos con este fin, pero se enfocará de tal manera que, sean los propios residentes los que...

  5. Las canciones de Hanns Eisler: lucha, exilio y autonomía del arte

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    Arribas, Sonia

    2009-10-01

    Full Text Available This article describes and analyzes the techniques and lyrics employed by Hanns Eisler in some of the songs he composed during the Weimar Republic and later on during his exile in the United States. If the early compositions were created with the aim of contributing to the workers’ political struggle and thus reflect Eisler’s rejection of the autonomy of art, or art for its own sake, the later ones can be interpreted as symptoms of what I here call the “forced” autonomy of art.En este artículo se describen y analizan las técnicas y letras empleadas por Hanns Eisler en algunas de las canciones que compuso durante la República de Weimar y posteriormente durante su exilio en los Estados Unidos. Si las primeras composiciones fueron creadas con el objetivo de contribuir a la lucha política de los trabajadores y por tanto reflejan el rechazo de Eisler a la autonomía del arte, o al arte como un fin en sí mismo, las últimas pueden ser interpretadas como síntomas de lo que aquí denomino la autonomía “forzada” del arte.

  6. Conocimiento de las familias sobre el nivel de autonomía del que disponen las personas con discapacidad intelectual.

    OpenAIRE

    Bazaga-Cordobés, Laura Isabel

    2013-01-01

    Las personas con discapacidad intelectual se caracterizan por padecer limitaciones significativas en el funcionamiento intelectual y en la conducta adaptativa que se manifiesta en habilidades adaptativas conceptuales, sociales, y prácticas. En el modelo de Estado de Bienestar español, las familias son las principales partícipes de la articulación y distribución de bienestar social de los miembros de la familia, en especial de las personas con algún tipo de dependencia. Este est...

  7. DEVELOPMENT OF A NEW RECURSIVE MEDIAN FILTERING SCHEME FOR PROCESSING POTENTIOMETER SIGNAL IN CSRDM OF PFBR

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    M. Mohana

    2012-07-01

    Full Text Available Prototype Fast Breeder Reactor (PFBR which is in advanced stage of construction at Kalpakkam has two shutdown systems, namely - Control & Safety Rod Drive Mechanisms (CSRDM and Diverse Safety Rod Drive Mechanisms (DSRDM. Since response time of Electromagnet (EM present in CSRDM is an important safety parameter, it is measured and monitored periodically. In PFBR, measurement of response time of EM is done by Current Decay method. An alternate approach to measure EM response time is Displacement Method, wherein it is proposed to utilise the existing potentiometer in CSRDM for position monitoring to measure EM response time. In light of this, a study was carried out to probe the feasibility of its implementation. To aid in the study, a new Recursive Median filtering scheme termed as ‘Multipass recursive median filter with variable window’ was developed to process the unconditioned potentiometer signal in Displacement method. EM response time obtained from Displacement Method and that obtained through Current decay method were found to be in good agreement with each other. This paper details the new Recursive Median filtering scheme developed.

  8. La corresponsabilidad del Estado en la crianza o la viabilidad de la autonomía para las madres: parámetros culturales e intereses patriarcales

    OpenAIRE

    Merino Murga, Patricia

    2011-01-01

    El objeto de análisis de este estudio es la situación de las mujeres-madre en España en lo relativo a la crianza: sus posibilidades de autonomía económica, las políticas públicas destinadas a las familias y su relación con el familiarismo característico de la sociedad española. Se exponen, en primer lugar, las políticas familiares del régimen de bienestar español y de otros regímenes europeos, estableciendo una comparativa; y en segundo lugar se realiza un análisis de las concepciones y...

  9. Impacto de la "Ley de promoción de la autonomía personal y atención a las personas en situación de dependencia" en las personas con trastorno mental grave.

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    Teodosia Sobrino Calzado

    2012-01-01

    Full Text Available La Ley 39/2006, conocida como Ley de Dependencia, ha generado, desde su aprobación, desconfianza por estar orientada a la atención de la dependencia, siendo la promoción de la autonomía personal un elemento apenas desarrollado y secundario.
    En el caso de las personas con trastorno mental grave, lo que mayor preocupación ha causado a las organizaciones de profesionales de la salud mental y a las asociaciones de familiares ha sido la compatibilidad de dicha Ley con las prestaciones del Sistema Nacional de Salud y si el baremo establecido se ajustaba a las necesidades de este colectivo.
    Este artículo recoge el trabajo realizado desde diferentes comunidades autónomas por diferentes profesionales en un intento de, tras un análisis de la Ley, plantear a la administración responsable de la misma el necesario ajuste para adaptarla a las características de las personas con trastorno mental grave.
    Se analizan, en primer lugar, sus fortalezas y debilidades. Posteriormente se exponen tres formas diferentes de contrarrestar sus riesgos, en tres comunidades autónomas diferentes. Finalmente se dan las claves de los aspectos de la Ley sobre los que hay que seguir trabajando para que sea una oportunidad para las personas con trastorno mental grave, y no una barrera

  10. Autonomía en movimiento: reflexión desde las prácticas políticas alternativas de jóvenes en Colombia

    OpenAIRE

    Sandra Milena Muñoz-López; Sara Victoria Alvarado

    2011-01-01

    En este artículo presentamos una reflexión sobre los ejercicios de autonomía en las prácticas políticas de jóvenes en Colombia que, desde los principios de desobediencia y noviolencia activa, resisten a la lógica patriarcal y militarista que impera en la organización social y en la cultura dominante. En esta vía, ubicamos a la autonomía como una trama de la subjetividad política que trasciende la mirada de ilustración del pensamiento y la capacidad de pensar por sí mismo, al entenderla tambié...

  11. La Autonomía Administrativa de las Instituciones Gubernamentales en Venezuela: El Caso de la Superintendencia de Bancos y Otras Instituciones Financieras (SUDEBAN)

    OpenAIRE

    Rosa Amelia González de Pacheco; Pável Gómez

    2001-01-01

    Los eventos registrados antes de la crisis financiera venezolana de 1994-95, ponen al descubierto la activa oposición que puede enfrentar la supervisión y regulación pública de las instituciones financieras; en particular, resalta el esfuerzo realizado por algunos grupos de interés para frenar la reforma del sistema financiero que, entre otras cosas, garantizaría la autonomía de la SUDEBAN. El estudio de estos eventos revela además el significativo papel que la ausencia de una supervisión y r...

  12. Impactos de las medidas de estabilidad presupuestaria en el Sistema de Autonomía y Atención a la Dependencia: retos del futuro

    OpenAIRE

    J. Montserrat

    2016-01-01

    La Ley 39/2006 de Promoción de la Autonomía Personal y Atención a las Personas en Situación de Dependencia (LAPAD) supuso una conquista de los ciudadanos, al lograr que el Estado reconociera el derecho de las personas en situación de dependencia a ser objeto de protección social pública, asegurando que ninguna persona en dicha situación pudiera quedar desprotegida por circunstancias familiares o económicas, superando la visión benéfica de la política social. El presente artículo sintetiza de ...

  13. Autonomía de las prácticas de estudio en ambientes virtuales de aprendizaje

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    Isabel Cristina Ángel Uribe

    2012-07-01

    Full Text Available This article presents the literature review on autonomy within study practices done as part of the research project “Pedagogical Use of virtual forums and blogs in graduate courses: maximizing autonomy within study practices, a case study at Universidad Pontificia Bolivariana”. The purpose of the literature review was to find out the elements that maximize autonomy in study practices among students, especially, from teachers’ instructions and moderations through blogs and virtual forums used as pedagogical and didactic resources in graduate virtual courses. Teaching and motivation showed to be the two most prominent elements to favor autonomy within study practices. Elements such as accompaniment, counseling, autonomous work processes, and assessment - that make part of the role of the teacher who promotes autonomous learning (Lobato, 2006 - were considered in order to design the instruments. Also, López-Aguado’s CETA structure factors for autonomous work (2010 – resourcefulness, collaboration, test design, and participation were considered.

  14. Las políticas de seguridad en Argentina: los límites de la autonomía policial

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    Gabriel Costantino

    2014-10-01

    Full Text Available El trabajo problematiza la teoría de la autonomía policial en Argentina, a partir del estudio de la implementación de políticas de seguridad en cuatro provincias entre 1996 y 2011. La hipótesis central del trabajo es que los gobernadores son los actores que tienen las facultades y el interés de llevar adelante una política de seguridad de izquierda o de derecha según su plan de campaña, que responde a otros condicionantes que no son los supuestos intereses policiales: principalmente los intereses del ejecutivo nacional y la ubicación del elector medio. La contrastación de dicha hipótesis instruye sobre la autonomía relativa de la policía y su papel en la construcción de un relato político siempre demandado sobre la seguridad y los medios para proveerla. Futuras investigaciones deberán profundizar el nuevo enfoque teórico, avanzando no sólo en la explicación de la implementación de las políticas de seguridad sino también en su eficacia.

  15. Bolivia: ¿Es posible la construcción de un nuevo Estado? La Asamblea Constituyente y las Autonomías Departamentales Bolivia: Is the Formation of a New State Possible? The Constituent Assembly and the Departmental Autonomies

    OpenAIRE

    GRACE IVANA DEHEZA

    2008-01-01

    En 2007 se dieron en Boliva conflictos en torno a la Asamblea Constituyente, las autonomías y la asignación de los recursos del Estado. Las alineaciones de los diferentes actores políticos con respecto al tema de las autonomías demarcó la línea de división entre los aliados del gobierno y la oposición. Este trabajo, además de describir estos hechos, también muestra las tensiones entre los poderes del Estado, así como el desempeño económico y las relaciones exteriores establecidas por el gobie...

  16. Diagnosis and behavior in autonomic trigeminal headaches Diagnóstico y conductas en las cefaleas trigeminales autonómicas

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    Erélido Hernández Valero

    Full Text Available Autonomic trigeminal headaches are primary headaches which include: cluster headaches, paroxistical hemicranea, and syndrome of unilateral headache in a neuralgic way, of short duration, accompanied by cojunctival injection and tearing and the continuous hemicranea. It is also accompanied by autonomic manifestations such as: palpebrate ptosis, tearing, nasal congestion, rhinorrhea, Horner syndrome (palpebrate ptosis, miosis, and enophthalmos and changes in the coloration of the periocular skin and in the cheek. In this paper we propose the most likely diagnosis and therapeutic to this nosologic entity

    Las cefaleas trigeminales autonómicas son cefaleas primarias que incluyen: la cefalea en racimos, hemicránea paroxística, el síndrome de cefalea unilateral neuralgiforme, de corta duración, con inyección conjuntival y lagrimeo y la hemicránea continua; se acompañan de manifestaciones autonómicas como son: ptosis palpebral, lagrimeo, congestión nasal y rinorrea, síndrome de Horner (ptosis palpebral, miosis y enoftalmos y cambios de coloración de la piel periocular y de la mejilla. En el presente trabajo proponemos un acercamiento diagnóstico y terapéutico hacia dicha entidad nosológica.

  17. Polarización de la estructura funcional de las capitales de provincia y de autonomía en España: 1981-2011

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    Escolano Utrilla, Severino

    2014-06-01

    Full Text Available Some fundamental trends of the recent reorganization of economic activities in Spain are defined by the growing concentration in certain urban areas of certain economic activities, especially those related to the creation, management and use of innovation and knowledge, and selective decentralization of others. The main hypothesis of this work assumes that capital of autonomy is a factor that exerts some influence on the structure of economic activities in a city. In this paper we study the scope of this thesis referred to municipalities and provincial capitals of autonomy between 1981 and 2011. The study conducted helps verify the trend towards concentration of capital in certain activities of the knowledge economy. The good connectivity of cities or the proximity to large urban areas are attractive forces; the capital of autonomy has a limited influence on intermediate sized nuclei located in dynamic regional contexts.Parte de la reorganización reciente de las actividades económicas en España se define por la concentración en determinadas áreas urbanas de ciertas actividades económicas, especialmente las relacionadas con la creación, gestión y uso de la innovación y el conocimiento, y por la descentralización selectiva de otras. La hipótesis principal de este trabajo asume que la capitalidad de autonomía es un factor que ejerce influencia en la estructura de las actividades económicas de una ciudad. En este marco se estudia el alcance de estas tesis referidas a los municipios capitales de provincia y de autonomía entre 1981 y 2011. El estudio permite constatar la tendencia a la concentración en determinadas capitales de las actividades de la «economía del conocimiento» . La buena conectividad de las ciudades o la cercanía a grandes áreas urbanas son fuerzas de atracción de este tipo de actividades; la capitalidad de autonomía tiene una influencia limitada en núcleos de tamaño intermedio ubicados en contextos regionales

  18. La construcción de la autonomía profesional docente: el caso del movimiento de la escuela moderna en las Azores (Portugal

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    Pedro Francisco GONZÁLEZ ROA

    2011-11-01

    Full Text Available La construcción de la identidad profesional, el reconocimiento y desarrollo de la capacidad de autonomía, la convicción de que la formación pasa necesariamente por un trabajo de cooperación, así como la construcción de respuestas a las exigencias del mundo contemporáneo y la certeza de que la «educabilidad» del alumno son objetivos y motor del proceso de construcción de la profesión para un grupo de docentes que, a lo largo de los últimos diez años, se viene dedicando, sistemática y «obsesivamente», a esta tarea. El objetivo fundamental del trabajo de estos profesionales pasa por mejorar ese instrumento que es el profesor a través de la construcción de una pedagogía cooperativa donde el centro sea el alumno en contexto de grupo, aspirando a la mejora permanente de la democracia. La experiencia de (autoformación cooperada que vamos a describir a continuación viene siendo desarrollada por un grupo de profesores en la Isla Terceira del Archipiélago de las Azores, en Portugal, a través del ejercicio de autonomía, espíritu crítico y sentido de participación social en un contexto suprainstitucional. La estrategia adoptada por el grupo incluye el trabajo de formación entre iguales en momentos de reflexión compartidos sobre las prácticas pedagógicas llevadas a cabo organizando para ello «grupos cooperativos» y otras modalidades de formación cooperada. Se apuesta en la perspectiva de «formarse» unos a otros en un contexto de comunicación y espíritu de ayuda mutua incidiendo en la realidad de su práctica pedagógica del día a día.

  19. Autonomía Local, equilibrio presupuestario y sostenibilidad financiera. Tendencias y perspectivas contemporáneas en las relaciones de tutela financiera y control presupuestario local en España (2008-2014)

    OpenAIRE

    Aldeguer Cerdá, Bernabé

    2014-01-01

    El presente artículo tiene como principal propósito analizar las relaciones multinivel de coordinación interadministrativa entre el Estado y las EELL en materia de control presupuestario y tutela financiera. Se pretende evaluar el impacto de las recientes reformas sobre equilibrio presupuestario y sostenibilidad financiera sobre el margen y el alcance de la Autonomía Local, a la luz de la normativa comunitaria europea y la reforma del artículo 135 de la Constitución Española. Los resultados s...

  20. Las implicaciones jurídicas de la enfermedad de Alzheimer, con un enfoque desde la autonomía de la voluntad en el contexto jurídico cubano

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    Joanna Pérez Pereira

    2013-08-01

    Full Text Available En la investigación se realiza un estudio sobre las implicaciones jurídicas de la enfermedad de Alzheimer, con un enfoque desde la autonomía de la voluntad. Empleando el análisis de documentos, un cuestionario y la entrevista a expertos, se determinaron las condiciones que deben caracterizar el ejercicio de la autonomía de un enfermo de Alzheimer para otorgar los mecanismos de autoprotección jurídica en previsión de su propia y futura incapacidad y así proteger su persona y sus bienes. Se vincula la autonomía de la voluntad con la libertad, las características de esta enfermedad y la capacidad jurídica de obrar de los discapacitados mentales, se estudia la recepción legislativa de la autonomía en el ordenamiento jurídico cubano y su necesario reflejo en lo estipulado en el Programa Integral de Atención al Adulto Mayor en Cuba, por ser el grupo poblacional más afectado por esta enfermedad. Todo lo cual, unido a la relación entre el envejecimiento poblacional, la enfermedad de Alzheimer y los mecanismos de autoprotección jurídica, permitieron precisar las problemáticas jurídicas que genera el ejercicio de autonomía de la voluntad de los enfermos de Alzheimer, en previsión de su propia incapacidad.

  1. Aproximaciones al Principio de Autonomía en el tratamiento de diálisis: el Consentimiento Informado y las Voluntades Anticipadas Approaches to the Principle of Autonomy in dialysis treatment: Informed Consent and Living Will

    OpenAIRE

    Maribel Díaz Jurado; Nieves Simal Vélez; Esther Salillas Adot; Maricel Julve Ibáñe

    2009-01-01

    En la actualidad el Principio de Autonomía pretende marcar la relación asistencial entre los profesionales sanitarios y los pacientes. Actualmente, la expresión del Principio de Autonomía del paciente en las decisiones referidas a su tratamiento se plasma en el Consentimiento Informado y el Documento de Voluntades Anticipadas. El objetivo de este trabajo, es verificar que conocimientos tiene el paciente con insuficiencia renal crónica terminal en tratamiento de diálisis en nuestro hospital, r...

  2. Las cláusulas excepcionales en la actividad contractual de la administración pública: ¿autonomía de la voluntad o imposición del legislador?

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    Néstor David Osorio Moreno

    2013-12-01

    Full Text Available Dentro de la actividad contractual de la administración pública en Colombia, se ha permitido, por disposición de la normativa constitucional y del legislador, la aplicación del principio de la autonomía de la voluntad, para que los sujetos contratantes dentro del negocio jurídico público construyan y establezcan las cláusulas que determinen las condiciones del contrato que celebran. El alcance de la autonomía de la voluntad debe ser analizado y sometido a una reflexión, frente a la institución de las cláusulas excepcionales al Derecho común, utilizadas por las entidades del Estado, dentro de la relación jurídica contractual que genera con el contratista. La existencia de las cláusulas excepcionales ha sido justificada por la consecución de los fines del Estado y, en especial, del interés público, pero no se ha reflexionado sobre la esencia de la figura. La aplicación de la institución en las relaciones contractuales del Estado se ha desarrollado sin determinar la naturaleza de la figura, como verdaderas cláusulas, originadas por la autonomía de la voluntad de las partes del contrato, o si se trata de privilegios conferidos e impuestos por el legislador, a la administración pública, como concreción del principio de legalidad. Este trabajo concluye que las cláusulas excepcionales al Derecho común, utilizadas en la actividad contractual de la administración pública, consisten en privilegios especiales que impone el legislador a las entidades estatales, dentro de la relación jurídica contractual, y que se contraponen a la esencia del verdadero concepto de cláusula y del principio de la autonomía de la voluntad.

  3. Literalidad, necesidad, autonomía: atributos de los títulos valores. Análisis de la jurisprudencia de las cortes constitucional y suprema de justicia colombianas 1992-2008

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    Ramiro Rengifo

    2010-01-01

    Full Text Available Este trabajo pretende dos objetivos principales: el primero, explicar el alcance de los atributos de los títulos valores: necesidad, literalidad y autonomía, contenidos en el artículo 619 del Código de Comercio, y precisar algunos de sus efectos prácticos, con énfasis en el carácter del título valor como bien mueble, en cuanto cumple una importante función económica como mercancía transable; el segundo, presentar y analizar las sentencias en las que las cortes Constitucional y Suprema de Justicia colombianas se han referido al tema de los atributos de los títulos valores en el periodo 1992-2008.

  4. Agent, autonomous

    OpenAIRE

    Luciani, Annie

    2007-01-01

    The expression autonomous agents, widely used in virtual reality, computer graphics, artificial intelligence and artificial life, corresponds to the simulation of autonomous creatures, virtual (i.e. totally computed by a program), or embodied in a physical envelope, as done in autonomous robots.

  5. Un episodio del pensamiento francés de la autonomía. Benjamin Constant y las idées très ingénieuses

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    Francisco Gelman Constantin

    2014-03-01

    Full Text Available UN EPISODIO DEL PENSAMIENTO FRANCÉS DE LA AUTONOMÍA Benjamin Constant y las idées très ingénieuses   Francisco Gelman Constantin Facultad de Filosofía y Letras, Universidad de Buenos Aires     Abstract – This paper attempts a consideration of the significance of Benjamin Constant’s aesthetic thoughts within the context of the history of the concept of “aesthetic autonomy”. With that in mind it reevaluates his transformation of the German tradition, by way of its binding to the social theory corresponding to the cultural and historical analysis of early French Romanticism. Taking the coinage of the expression “art for art’s sake” as a starting point, this paper reconstructs the whole of Constant’s thought-system, as well as its exchanges with some of his contemporaries –namely Mme. de Staël and Henry Crabb Robinson– in the means of understanding the proper reach of the conceptual novelties brought in by him, as can be seen from the standing point of Begriffsgeschichte. The paper deals not only with his postulates referring specifically to a negative relationship towards the mercantile society, but also with the analogies he establishes between art, love, religion and morality, while it furthermore examines his theory of social autonomy. The reflexive setting together of this different elements, assembled from his political essays, his journals, the novel Adolphe and other writings, brings to the light a general form of a thought of the autonomous, which explains the manner in which Constant understands aesthetic autonomy in particular, by way of his collaboration and dissent with his European colleagues.   Keywords: autonomy; Constant; art for art’s sake; Begriffsgeschichte; religion     Resumen – Este trabajo se propone reconsiderar la importancia de las reflexiones estéticas de Benjamin Constant en el contexto de la historia del concepto de autonomía estética. Para ello reevalúa las transformaciones

  6. La autonomía de las CAR en la jurisprudencia constitucional de Colombia: Análisis de línea jurisprudencial

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    Luz Stella Mantilla

    2015-01-01

    Full Text Available The public administration of the environment in Colombia is characterized by decentralized . Based on this form of organization , renewable natural resources are organized under criteria ecosystem unit subject to the territorial jurisdiction of the regional autonomous corporations CAR. The CAR is part of what in Colombia is called the National Environmental System, SINA, and although they are not subject to administrative hierarchies by the Ministry of environment, discusses the true scope of its administrative autonomy. The discussion about the autonomy of the CAR has created tensions between the central level and the decentralized level to the point of being necessary the intervention of the constitutional court to set limits to the possibility for the Ministry to intervene in the proceedings of the CAR, and to define those competencies that the CAR can act autonomously

  7. La autonomía de las CAR en la jurisprudencia constitucional de Colombia: Análisis de línea jurisprudencial

    OpenAIRE

    Luz Stella Mantilla

    2015-01-01

    The public administration of the environment in Colombia is characterized by decentralized . Based on this form of organization , renewable natural resources are organized under criteria ecosystem unit subject to the territorial jurisdiction of the regional autonomous corporations CAR. The CAR is part of what in Colombia is called the National Environmental System, SINA, and although they are not subject to administrative hierarchies by the Ministry of environment, discusses th...

  8. A quarter of a century of function assignment agreements with the autonomous communities. The; Los acuerdos de encomienda con las comunidades autonomas cumplen un cuarto de siglo

    Energy Technology Data Exchange (ETDEWEB)

    Montero Sanchez, M. A.; Rodriguez Marti, M.; Urbano Pollato, I.; Zamora Martin, F.

    2010-07-01

    The CN has the power to commission certain radioactive facility surveillance and inspection functions to the autonomous communities through an agreement between the Council and the regional government in question. The first of these agreements was signed in 1985 with the Regional Government of Catalonia, and during the 25 years that have passed since then similar agreements have been signed with eight other communities: Asturias, the Balearic Islands, the Canary Islands, Galicia, Murcia, Navarra, the Basque Country and the Community of Valencia. (Author)

  9. Aproximaciones al Principio de Autonomía en el tratamiento de diálisis: el Consentimiento Informado y las Voluntades Anticipadas Approaches to the Principle of Autonomy in dialysis treatment: Informed Consent and Living Will

    Directory of Open Access Journals (Sweden)

    Maribel Díaz Jurado

    2009-09-01

    Full Text Available En la actualidad el Principio de Autonomía pretende marcar la relación asistencial entre los profesionales sanitarios y los pacientes. Actualmente, la expresión del Principio de Autonomía del paciente en las decisiones referidas a su tratamiento se plasma en el Consentimiento Informado y el Documento de Voluntades Anticipadas. El objetivo de este trabajo, es verificar que conocimientos tiene el paciente con insuficiencia renal crónica terminal en tratamiento de diálisis en nuestro hospital, referido al Consentimiento Informado y el Documento de Voluntades Anticipadas y saber si el paciente se consideró bien informado sobre su estado de salud al inicio de su enfermedad renal y en la actualidad. Estudio retrospectivo, observacional y descriptivo en 55 pacientes de nuestro servicio. Los resultados muestran que el Consentimiento Informado no es conocido por la mayoría de los pacientes y que el Documento de Voluntades Anticipadas no forma parte de la información que recibe. La información recibida al inicio del tratamiento es satisfactoria en todos los pacientes. En la actualidad están más satisfechos los pacientes en diálisis peritoneal y también han tenido más posibilidad de elegir tratamiento. Los enfermos en hemodiálisis desean tener más autonomía en las decisiones referidas a su tratamiento.At present, the principle of autonomy seeks to provide the framework for relations between healthcare professionals and patients in the context of their care. Currently, the expression of the principle of the patient's autonomy in decisions concerning his or her treatment is materialized in the Informed Consent and Living Will. The aim of this work is to verify what knowledge terminal chronic renal insufficiency patients undergoing dialysis in our hospital have, with regard to Informed Consent and the Living Will and to know whether patients consider themselves to be well-informed about the state of their health at the start of their kidney

  10. Emancipación y democracia: sus relaciones desde las reflexiones sobre autonomía y corte de Adorno y Althusser

    OpenAIRE

    Gisela Catanzaro

    2015-01-01

    Desde distintas tradiciones políticas que en determinados momentos han llegado a configurar cierto sentido común, ha sido posible sostener una interpretación común de la historia y de la práctica política según la cual la lógica de la emancipación resultaría incompatible con, o enfrentada a, la lógica de la democracia. La problematización de la autonomía por Th. Adorno, y del corte por L. Althusser, permitirían -en cambiorepensar su relación más allá de la oposición pura entre ruptura instan...

  11. El papel autónomo de enfermería en las consultas O papel autônomo da enfermagem nas consultas The autonomous role of nursing during medical visits

    Directory of Open Access Journals (Sweden)

    ITZA LEILIANA CAMARGO B.

    2010-06-01

    Full Text Available El presente artículo hace referencia a la autonomía de enfermería en las consultas de atención primaria. Surgió de las inquietudes que plantean las enfermeras sobre su autonomía en el desarrollo de su rol en el marco de la estrategia de atención primaria en salud (APS. Además de la revisión de la literatura sobre la temática, contiene algunos lineamientos para hacer una aproximación a la autonomía de las enfermeras a través de la APS. Está dirigido a todos los profesionales de enfermería que comparten la esperanza de llegar a tomar decisiones propias, teniendo en cuenta que la falta de delimitación de sus funciones implica una repercusión importante para la profesión y la sociedad. Para la profesión porque hace más difícil la consolidación del logro de su identidad profesional, tan necesaria y promulgada en la actualidad, y en la sociedad porque redunda en la calidad de la atención que se brinda y en la imagen que esta tiene de la enfermería.O presente artigo se refere à autonomia da enfermagem nas consultas de atenção primária. A necessidade do trabalho nasceu a partir da preocupação das enfermeiras sobre sua autonomia no desempenho da função de enfermagem no âmbito da estratégia de atenção primária em saúde (APS. Além da revisão bibliográfica acerca dos temas, o trabalho contem algumas diretrizes para abordar a autonomia das enfermeiras através da APS. O estudo está voltado para todos os profissionais da enfermagem que compartilham a esperança de tomar decisões próprias, levando em conta que a falta de delimitação de suas funções traz repercussões importantes para a profissão e a sociedade. Para a profissão, porque dificulta a consolidação de sua identidade profissional, tão necessária e promulgada atualmente, e para a sociedade, porque redunda na qualidade da atenção oferecida e na imagem da enfermagem dentro da sociedade.This article refers to the nursing autonomy in primary

  12. El papel autónomo de enfermería en las consultas The autonomous role of nursing during medical visits O papel autônomo da enfermagem nas consultas

    Directory of Open Access Journals (Sweden)

    CARO CLARA VIRGINIA

    2010-04-01

    Full Text Available El presente artículo hace referencia a la autonomía de enfermería en las consultas de atención primaria. Surgió de las inquietudes que plantean las enfermeras sobre su autonomía en el desarrollo de su rol en el marco de la estrategia de atención primaria en salud (APS. Además de la revisión de la literatura sobre la temática, contiene algunos lineamientos para hacer una aproximación a la autonomía de las enfermeras a través de la APS. Está dirigido a todos los profesionales de enfermería que comparten la esperanza de llegar a tomar decisiones propias, teniendo en cuenta que la falta de delimitación de sus funciones implica una repercusión importante para la profesión y la sociedad. Para la profesión porque hace más difícil la consolidación del logro de su identidad profesional, tan necesaria y promulgada en la actualidad, y en la sociedad porque redunda en la calidad de la atención que se brinda y en la imagen que esta tiene de la enfermería.This article refers to the nursing autonomy in primary assistance patient services. It originated from the questions posed by nurses on the autonomy in the development of their role within the framework of the health primary assistance strategy (APS for its initials in Spanish. In addition to the literature review on the issue, it contains some guidelines to make an approach to the nurses’ autonomy through the APS. It is geared at all the nursing professionals who share the hope to, one day, be able to make their own decisions, taking into account that the lack of definition of their functions has an important repercussion for the nursing profession and for society. For the profession because it makes consolidation of professional identity more difficult, an identity that is much needed and promoted nowadays, and for society because it is reflected in the quality of the assistance provided and in the image people have of nursing.O presente artigo se refere à autonomia da enfermagem

  13. Expansión del Sector Público Empresarial en las Autonomías y Ayuntamientos. Evolución y análisis de las posibles causas

    OpenAIRE

    Juan R. Cuadrado Roura; Marta Carrillo Neff

    2008-01-01

    Uno de los hechos destacables en la evolución de las comunidades autónomas y los municipios españoles en la última década es el fuerte crecimiento que ha experimentado el número de empresas públicas creadas. Un crecimiento que contrasta claramente con el proceso de reducción que ha seguido el sector público empresarial del Estado, a través de las privatizaciones y la liquidación de empresas que anteriormente eran públicas. El texto expondrá los datos que reflejan este hecho y propondrá un con...

  14. Informe final del grupo de expertos para la evaluación del desarrollo y efectiva aplicación de la Ley 39/2006, 14 de diciembre, de Promoción de la Autonomía Personal y Atención a las Personas en Situación de Dependencia

    OpenAIRE

    Cervera Macià, Montserrat; Herce San Miguel, José A.; López Casasnovas, Guillem; Rodríguez Cabrero, Gregorio; Sosvilla Rivero, Simón

    2009-01-01

    El presente informe, realizado por un grupo de expertos, recoge la evaluación del desarrollo y la aplicación de la Ley 39/2006, de 14 de diciembre, de Promoción de la Autonomía Personal y Atención a las Personas en Situación de Dependencia (LAPAD). Dicho documento se estructura en tres apartados. Tras unas breves consideraciones generales sobre el Sistema para la Autonomía y Atención a la Dependencia (SAAD), se presenta un balance global de la aplicación de la ley en distintos aspectos clave,...

  15. Correlation between basal serum IGF-1 levels and functional autonomy in elderly women. (Correlación entre los niveles sericos de IGF-1 basal y autonomía funcional en las ancianas.

    Directory of Open Access Journals (Sweden)

    Rodrigo Gomes de Souza Vale

    2009-01-01

    Full Text Available Abstract The aim of the present study was to determine the degree of correlation between basal serum IGF-1 levels and functional autonomy in the performance of activities of daily living (ADL. The sample comprised 11 elderly individuals, disregarding their ADLs (age = 68.18 ± 5.19 years; body mass index (BMI = 28.89 ± 3.44 kg/m2 and not enrolled in physical exercise programs for at least 3 months. The subjects were submitted to a battery of 5 functional autonomy tests from the GDLAM protocol and blood collection to assess serum IGF-1 levels. Using Pearson’s correlation, we found a significant mean correlation coefficient (r between the 10 m walking test (10mW and IGF-1 (r = -0.690; p = 0.009 and mean correlation, but not significant between the putting on and removing a t-shirt test (PRTS and IGF-1 (r = -0.528 and between the general autonomy index (AI and IGF-1 (r = -0.417. The correlation was low in the remaining tests, but inversed. This suggests that the decline in IGF-1 with age may decrease ADL performance in the elderly. Key words: Serum IGF-1; ADL; elderly. Resumen El objetivo del presente estudio fue comprobar el nivel de la correlación entre los niveles de serum basal de IGF-1 y la autonomía funcional para la realización de las actividades de la vida diaria en personas mayores (edad = 68,18 ± 5,19 años; índice de la masa corporal, IMC = 28,89 ± 3,44 kg/m2, no participantes de los programas de ejercicios físico desde hace un mínimo de 3 meses. Los sujetos fueron sometidos a una batería de 5 tareas de autonomía funcional del protocolo GDLAM y un análisis de sangre para evaluar los niveles de serum de IGF-1. A través de la correlación de Pearson se comprobó la existencia de un coeficiente de la correlación (r medio y significativo entre el examen de la marcha 10m (C10m y el IGF-1 (r = -0,690; p=0,009 y la correlación media, pero no significativa ,entre el test de vestirse y quitarse una camiseta (VTC y el IGF-1 (r= -0

  16. The Application of New Structure and Process in Conductive Plastic Potentiometer%新结构、新工艺在导电塑料电位器中的应用

    Institute of Scientific and Technical Information of China (English)

    王永军; 何钢

    2015-01-01

    The article mainly introduces the application process of multi figure wiper mix and the screen printing of conductive substrate in precision conductive plastic potentiometer, illustrates the key role of new structure and process in improving technical index of precision conductive plastic potentiometer and large-scale production.%本文主要介绍了精密导电塑料电位器多指刷结构及导电基体丝网印刷工艺的应用过程,重点阐述了新结构、新工艺对精密导电塑料电位器技术指标提高和规模化生产的重要作用。

  17. Entre la autonomía y la dependencia: interpelando las políticas de empleo desde una perspectiva de género Between autonomy and independency: challenging employment policies from a gender perspective

    Directory of Open Access Journals (Sweden)

    Nora Goren

    2011-08-01

    Full Text Available En un contexto en donde los marcos colectivos que estructuran la identidad social e individual de la población se fueron desistitucionalizando, nos vemos obligados a repensarlos en el marco de los nuevos procesos de socialización, donde el trabajo, mirado de manera tradicional, deja de ser el eje central de referencia. Aparecen nuevos espacios que dan lugar a esta construcción que se expresa en términos identitarios, en los cuales la política social, a través del poder simbólico que posee derivado de la capacidad que tiene el Estado de establecer clasificaciones, define identidades sociales al condicionar las prácticas cotidianas de los actores y actrices sociales. Las mujeres subjetivan su paso por los programas sociales, dándole un significado particular. En este sentido el trabajo presenta una tipología elaborada a partir de la lejanía o la proximidad en la que pueden encontrarse las mujeres, "beneficiarias" de programas de empleo, respecto a la posibilidad de construir su propia autonomía. Esta se propone aportar al momento de interpelar las acciones sociales desde una perspectiva de género, en tanto habilitantes, en mayor o en menor medida, de cambios en los repertorios subjetivos de las mujeres y de una forma diferente o no de hacer las cosas y de verse a si mismas y a su futuro. La metodología utilizada para la elaboración de esta tipología basada en la exploración de las representaciones e imaginarios femeninos explícitos e implícitos, fue de tipo cualitativo, esta metodología tiene la peculiaridad de captar la perspectiva interna de los actores y actrices sociales por medio de la utilización de un lenguaje de conceptos (Glasser y Strauss, 1967; Denzin y Lincoln, 1994.In a context where the collective frameworks that structure people's social and individual identities have been deinstitutionalizing, we are compelled to rethink them within the framework of the new processes of socialization, in which labor, as

  18. Autonomous Search

    CERN Document Server

    Hamadi, Youssef; Saubion, Frédéric

    2012-01-01

    Decades of innovations in combinatorial problem solving have produced better and more complex algorithms. These new methods are better since they can solve larger problems and address new application domains. They are also more complex which means that they are hard to reproduce and often harder to fine-tune to the peculiarities of a given problem. This last point has created a paradox where efficient tools are out of reach of practitioners. Autonomous search (AS) represents a new research field defined to precisely address the above challenge. Its major strength and originality consist in the

  19. Pure Autonomic Failure

    Science.gov (United States)

    ... Drugs GARD Information Navigator FAQs About Rare Diseases Pure autonomic failure Title Other Names: Bradbury Eggleston syndrome; ... Categories: Nervous System Diseases ; RDCRN Summary Summary Listen Pure autonomic failure is characterized by generalized autonomic failure ...

  20. L'Estatut bàsic de l'empleat públic: les competències autonòmiques - El Estatuto Básico del Empelado Público: las competencias autonómicas - The Basic Statute for Public Employees: the Powers of the Autonomous Governments

    Directory of Open Access Journals (Sweden)

    Federico Castillo Blanco

    2012-12-01

    Full Text Available El treball  que es presenta és un estudi de les competències autonòmiques en matèria d'ocupació  pública i, molt especialment, d'allò que es refereix a les competències assumides per Catalunya en virtut de les reformes estatutàries esdevingudes en els últims anys i la incidència de la jurisprudència constitucional sobre aquestes reformes esdevinguda com a conseqüència de l'examen de la constitucionalitat del nou Estatut d'autonomia.El trabajo que se presenta es un estudio de las competencias autonómicas en materia de empleo público y, muy especialmente, en aquello que se refiere a las competencias asumidas por Cataluña en virtud de las reformas estatutarias acontecidas en los últimos años y la incidencia en las mismas de la jurisprudencia constitucional emitida como consecuencia del examen de la constitucionalidad del nuevo Estatuto de autonomía.This paper studies the powers of the governments of the autonomous regions with respect to public employment, in particular, 1 the powers taken on by Catalonia as a result of the statutory reforms of recent years, and 2 the impact on these powers of the constitutional case law that has developed as a result of the challenges to the constitutionality of the new Statute of Autonomy. 

  1. Development of A Deep Ocean Electric Autonomous Manipulator

    Institute of Scientific and Technical Information of China (English)

    XIAO Zhi-hu; XU Guo-hua; PENG Fu-yuan; TANG Guo-yuan; SHEN Xiong; YANG Bo

    2011-01-01

    This paper describes an underwater 3500 m electric manipulator(named Huahai-4E,stands for four functions deep ocean electric manipulator in China),which has been developed at underwater manipulation technology lab in Huazhong University of Science and Technology(HUST)for a test bed of studying of deep ocean manipulation technologies.The manipulator features modular integration joints, and layered architecture control system.The oil-filled,pressure-compensated joint is compactly designed and integrated of a permanent magnet(PM)brushless motor,a drive circuit,a harmonic gear and an angular feedback potentiometer.The underwater control system is based on a network and consisted of three embedded PC/104 computers which are used for servo control,task plan and target sensor respectively.They communicate through User Datagram Protocol(UDP)multicast communication in Vxworks OS.A supervisor PC with a virtual 3D GUI is fiber linked to underwater control system.Furthermore,the manipulator is equipped with a sensor system including a unique ultra-sonic probe array and an underwater camera.Autonomous grasp strategy based multi-sensor is studied.The results of watertight test in 40 MPa,joint's efficiency test and autonomous grasp experiments in tank are also presented.

  2. Development of a deep ocean electric autonomous manipulator

    Science.gov (United States)

    Xiao, Zhi-Hu; Xu, Guo-Hua; Peng, Fu-Yuan; Tang, Guo-Yuan; Shen, Xiong; Yang, Bo

    2011-03-01

    This paper describes an underwater 3500 m electric manipulator (named Huahai-4E, stands for four functions deep ocean electric manipulator in China), which has been developed at underwater manipulation technology lab in Huazhong University of Science and Technology (HUST) for a test bed of studying of deep ocean manipulation technologies. The manipulator features modular integration joints, and layered architecture control system. The oil-filled, pressure-compensated joint is compactly designed and integrated of a permanent magnet (PM) brushless motor, a drive circuit, a harmonic gear and an angular feedback potentiometer. The underwater control system is based on a network and consisted of three embedded PC/104 computers which are used for servo control, task plan and target sensor respectively. They communicate through User Datagram Protocol (UDP) multicast communication in Vxworks OS. A supervisor PC with a virtual 3D GUI is fiber linked to underwater control system. Furthermore, the manipulator is equipped with a sensor system including a unique ultra-sonic probe array and an underwater camera. Autonomous grasp strategy based multi-sensor is studied. The results of watertight test in 40 MPa, joint's efficiency test and autonomous grasp experiments in tank are also presented.

  3. Comparación de las lesiones no mortales por accidente de trabajo por Comunidades Autónomas en España (1994-2004 Comparison of non-fatal occupational injuries by autonomous communities in Spain (1994-2004

    Directory of Open Access Journals (Sweden)

    María López-Ruiz

    2009-12-01

    Full Text Available Objetivos: Dadas las diferencias observadas en estudios previos de la incidencia de lesiones por accidente de trabajo (LAT por Comunidades Autónomas (CC.AA., en este estudio hemos evaluado la hipótesis de homogeneidad de la incidencia de las LAT para tipos específicos de accidentes y en determinadas actividades, entre 1994 y 2004. Métodos: Las LAT analizadas fueron no mortales con baja, de tipo mecánico y sobreesfuerzo, ocurridas en jornada en centro para empresas manufactureras y de la construcción. Se calculó el riesgo relativo ajustado por sexo, edad y tipo de contrato en cada una de las CC.AA. mediante la razón de LAT estandarizada, tomando como referencia las tasas de España, y estratificando según duración de la baja (menos de 16 días y más de 15 días. Resultados: El riesgo relativo ajustado de LAT según los diferentes tipos de accidentes analizados presenta una distribución heterogénea entre CC.AA. Murcia, Navarra, Baleares y País Vasco se encuentran generalmente entre las comunidades con riesgos más elevados, mientras que Castilla-León y Extremadura son las que tienen principalmente menores riesgos de sufrir una LAT. Conclusiones: La heterogeneidad en la incidencia de LAT entre CC.AA. persiste después de seleccionar una serie de formas de accidente específicas y ajustar por sexo, edad y tipo de contrato. Por ello sugerimos que, además de seguir analizando las condiciones de trabajo como explicación de esta heterogeneidad, se tengan en cuenta otras variables socioeconómicas al comparar las incidencias de LAT entre CC.AA.Objectives: Given the differences observed in previous studies with respect to occupational injury rates in Spain's autonomous communities, this study tested the homogeneity hypothesis of occupational injury for specific accident types and economic activity between 1994 and 2004. Methods: We analyzed non-fatal injuries of a mechanical nature or those due to overexertion taking place in

  4. A study of the effect of the transfer of autonomy on motivation on physical education classes Un estudio del efecto de la cesión de autonomía en la motivación sobre las clases de educación física.

    Directory of Open Access Journals (Sweden)

    E. Cervelló

    2010-09-01

    Full Text Available

    ABSTRACT

    The objective of this study was to test the hierarchical model of motivation of Vallerand, using and experimental approximation. Sixty eight adolescents with ages between 14 and 16 years participated in the study. Two classes were assigned to a control (no choice group (n = 33 and other two to an experimental (choice group (n = 35. The intervention program was a didactic unit of six meetings with pre-test and post-test. Measures of contextual and situational self-determined motivation were employed. Results show that the experimental group showed higher post-intervention values in perception of autonomy, situational and contextual self-determined motivation. The implications related to the possibility of choosing the tasks to increase the perception of autonomy and the self-determined motivation in the physical education classes were discussed in the manuscript.
    Key Words:
    Self-determined motivation, physical education, autonomy, motivational climate

     

    RESUMEN

    El objetivo del estudio ha consistido en comprobar desde una perspectiva experimental la bondad del modelo jerárquico de motivación de Vallerand para explicar las consecuencias motivacionales de diferentes entornos de aprendizaje en las clases de educación física a través de la modificación de la autonomía en el aprendizaje de tareas motoras. La muestra estuvo compuesta por 68 estudiantes con edades comprendidas entre 14 y 16 años. Se asignaron dos clases a un grupo control (n = 33 y otras dos a un grupo de intervención (n = 35. El programa constaba de una unidad didáctica de seis sesiones con pre-test y post-test. Se encontraron incrementos significativos para el grupo que tuvo autonomía para elegir las actividades respecto a la motivaci

  5. Impacto de la Ley de Promoción de la Autonomía Personal y Atención a las personas en Situación de Dependencia en la Población tratada con Hemodiálisis en Cataluña

    OpenAIRE

    Andreu Periz, Mª Dolores

    2014-01-01

    La Ley 39/2006, de 14 de diciembre, de Promoción de la Autonomía Personal y Atención a las personas en situación de dependencia que en su momento parecía suponer un importante avance social, fruto de un Estado de Bienestar moderno, ha tenido un desarrollo irregular. Esto dificulta el acceso a los beneficios de la Ley a personas afectas de enfermedades renales que para sobrevivir necesitan someterse a tratamiento con hemodiálisis y que no pueden valerse por sí mismas, lo que influye negativame...

  6. Autonomic Nervous System Disorders

    Science.gov (United States)

    Your autonomic nervous system is the part of your nervous system that controls involuntary actions, such as the beating of your heart ... breathing and swallowing Erectile dysfunction in men Autonomic nervous system disorders can occur alone or as the result ...

  7. Autoimmune Autonomic Ganglionopathy

    Science.gov (United States)

    ... Accessed 9/2/2015. Autoimmune Autonomic Ganglionopathy Summary. Dysautonomia International . http://www.dysautonomiainternational.org/page.php?ID= ... page Basic Information In Depth Information Basic Information Dysautonomia International offers an information page on Autoimmune autonomic ...

  8. The Role That Socioaffective Practices Play in Third Graders' Autonomous Learning (El papel de las prácticas socioafectivas en el aprendizaje autónomo de estudiantes de tercer grado)

    Science.gov (United States)

    Perdomo Toro, Jhonatan; Rico González, Ángela Milena; Huepa Salcedo, Nury Catherine

    2011-01-01

    In this article we describe and analyze how autonomous learning emerges in third graders' socioaffective practices as reconstructed in written narratives. Results were obtained by analyzing and reflecting on classroom observation, interviews and written narratives done by the students which let us appreciate different behaviors and reactions…

  9. A Method for Determination of Total Organic Acids in Tea Plant with Automatic Potentiometic Titration%茶树中总有机酸的自动电位滴定仪测定方法

    Institute of Scientific and Technical Information of China (English)

    朱旭君; 杨平平; 徐仁扣; 王玉花; 黎星辉

    2014-01-01

    建立了一种应用自动电位滴定仪快速检测茶树中总有机酸的方法,并用该方法测定了茶树新芽、幼叶、成熟叶,以及凋落叶中总有机酸的含量。结果表明,样品经乙醇提取、减压浓缩,再经过先碱化后酸化处理,乙酸乙酯萃取后,用自动电位滴定仪检测茶树叶片中的总有机酸,有机酸的添加量为2.0~45.0 mg·g-1,回收率为96.0%~99.6%,相对标准偏差(RSD)≤5.7%,该方法是茶树叶片总有机酸含量测定的简单快捷方法。运用该方法,新芽、幼叶、成熟叶、凋落叶总有机酸含量的测定值分别为44.9、20.1、21.1、1.99 mg·g-1。%A method for determination of total organic acids in tea plant by automatic potentiometic titrator was established in this study. And the content of total organic acids in bud, young leaf, mature leaf and withered leaf were determined by this method. The results showed that after extracting by ethanol, concentrated under reduced pressure, the concentrated solution was alkalized and acidified, then detected with automatic potentiometic titrator, the samples were spiked at the level of 2.0-45.0 mg·g-1, and the recovery of organic acids range from 96.0%-99.6%with RSD less than 5.7%. This simple and sensitive method meets with the analytical requirement to total organic acids in tea. The content of total organic acids in bud, young leaf, mature l eaf and withered leaf was 44.9, 20.1, 21.1 and 1.99 mg·g-1 respectively.

  10. Trigeminal autonomic cephalgias

    OpenAIRE

    Benoliel, Rafael

    2012-01-01

    1. Trigeminal autonomic cephalgias (TACs) are headaches/facial pains classified together based on:a suspected common pathophysiology involving the trigeminovascular system, the trigeminoparasympathetic reflex and centres controlling circadian rhythms;a similar clinical presentation of trigeminal pain, and autonomic activation.

  11. Testing for autonomic neuropathy

    DEFF Research Database (Denmark)

    Hilsted, J

    1984-01-01

    disease, and may be nonspecific. A number of recently developed quantifiable and reproducible autonomic nerve function tests are reviewed, with emphasis on the physiological basis of the tests and on practical applicability. Finally, diagnostic criteria, based on autonomic nerve function tests, are...

  12. Organizaciones de la sociedad civil y peronismo local. ¿Cooptación o autonomía? El caso de las asociaciones vecinales de Río Cuarto en tiempos del primer peronismo

    OpenAIRE

    Basconzuelo, Celia

    2014-01-01

    Resumen Este artículo se propone analizar la relación que el peronismo local estableció con las asociaciones de base. Éstas constituyen la unidad de análisis elegida, y serán entendidas como organizaciones de la sociedad civil. A partir de este estudio de caso se demostrará que las entidades fomentistas existentes durante los años peronistas mantuvieron sus actividades emblemáticas, el peronismo no ocluyó esa dinámica civil pero buscó controlarla y regularla j...

  13. Autonomía emocional durante la adolescencia

    OpenAIRE

    Oliva Delgado, Alfredo; Parra Jiménez, Agueda

    2001-01-01

    El objetivo de esta investigación fue estudiar la relación entre la autonomía emocional respecto a los padres y el tipo de relaciones establecidas entre padres e hijos durante la adolescencia. También pretendíamos analizar las características socio-emocionales de aquellos chicos y chicas que manifiestan una alta autonomía emocional, así como el papel moderador jugado por el género y la calidad del contexto familiar sobre las relaciones entre la desvinculación afectiva y el desarro...

  14. Mis primeros pasos hacia la autonomía

    OpenAIRE

    Down España

    2012-01-01

    Guía para fomentar la autonomía de los niños con síndrome de Down desde los primeros años. La publicación está orientada a familias y pretende ayudarles a reconocer la importancia de esta primera etapa, unos años que sentarán, no sólo las bases para su adecuado desarrollo, sino también las de su futura autonomía.

  15. Autonomous linear lossless systems

    OpenAIRE

    Rao, Shodhan; Rapisarda, Paolo

    2008-01-01

    We define a lossless autonomous system as one having a quadratic differential form associated with it called an energy function, which is positive and which is conserved. We define an oscillatory system as one which has all its trajectories bounded on the entire time axis. In this paper, we show that an autonomous system is lossless if and only if it is oscillatory. Next we discuss a few properties of energy functions of autonomous lossless systems and a suitable way of splitting a given ener...

  16. Autonomous surveillance for biosecurity.

    Science.gov (United States)

    Jurdak, Raja; Elfes, Alberto; Kusy, Branislav; Tews, Ashley; Hu, Wen; Hernandez, Emili; Kottege, Navinda; Sikka, Pavan

    2015-04-01

    The global movement of people and goods has increased the risk of biosecurity threats and their potential to incur large economic, social, and environmental costs. Conventional manual biosecurity surveillance methods are limited by their scalability in space and time. This article focuses on autonomous surveillance systems, comprising sensor networks, robots, and intelligent algorithms, and their applicability to biosecurity threats. We discuss the spatial and temporal attributes of autonomous surveillance technologies and map them to three broad categories of biosecurity threat: (i) vector-borne diseases; (ii) plant pests; and (iii) aquatic pests. Our discussion reveals a broad range of opportunities to serve biosecurity needs through autonomous surveillance. PMID:25744760

  17. Organizaciones de la sociedad civil y peronismo local. ¿Cooptación o autonomía? El caso de las asociaciones vecinales de Río Cuarto en tiempos del primer peronismo

    Directory of Open Access Journals (Sweden)

    Basconzuelo, Celia

    2014-12-01

    Full Text Available Resumen Este artículo se propone analizar la relación que el peronismo local estableció con las asociaciones de base. Éstas constituyen la unidad de análisis elegida, y serán entendidas como organizaciones de la sociedad civil. A partir de este estudio de caso se demostrará que las entidades fomentistas existentes durante los años peronistas mantuvieron sus actividades emblemáticas, el peronismo no ocluyó esa dinámica civil pero buscó controlarla y regularla jurídicamente, además consiguió peronizar algunas de ellas pero no ocurrió así con las organizaciones que se constituyeron en los años terminales del peronismo. Más aún, éstas crecieron geométricamente durante el posperonismo. Sobre la base de las fuentes periodísticas, de actas asamblearias y de las entrevistas a vecinalistas que protagonizaron la génesis del movimiento en 1954, se da cuenta de la continuidad de la práctica fomentista así como las diferencias que marcaron al nuevo vecinalismo en Río Cuarto, una ciudad del sur cordobés. Abstract This article intends to analyze the relationship of based partnerships established local peronism. These constitute the unit of analysis that is chosen, and will be understood as civil society organizations. From this case study will demonstrate that entities existing fomentistas during the Peronist years maintained its flagship activities, peronism not occluded that dynamic civil but sought to control and regulate it legally, also got peronizar some of them but did not take place as well with organizations that peronism terminals were formed over the years. Moreover, these grew geometrically over the posperonismo. On the basis of journalistic sources, assembly records and interviews with vecinalistas that they were the genesis of the movement in 1954, he realizes the defense of autonomy and efforts at co-opting municipal in Rio Cuarto, a city in southern Cordoba.

  18. AUTONOMOUS DRIVEN CAR

    OpenAIRE

    Meeshika Arora

    2013-01-01

    In order to achieve autonomous operation of a vehiclein urban situations with unpredictable traffic, several real timesystems must interoperate, including environment perceptionplanning and control. In addition a robust vehicle platform withappropriate sensors, computational hardware, networking andsoftware infrastructure is essential.

  19. Highly Autonomous Systems Workshop

    Science.gov (United States)

    Doyle, R.; Rasmussen, R.; Man, G.; Patel, K.

    1998-01-01

    It is our aim by launching a series of workshops on the topic of highly autonomous systems to reach out to the larger community interested in technology development for remotely deployed systems, particularly those for exploration.

  20. Engineering Autonomous Driving Software

    OpenAIRE

    Berger, Christian; Rumpe, Bernhard

    2014-01-01

    A larger number of people with heterogeneous knowledge and skills running a project together needs an adaptable, target, and skill-specific engineering process. This especially holds for a project to develop a highly innovative, autonomously driving vehicle to participate in the 2007 DARPA Urban Challenge. In this contribution, we present essential elements of a software and systems engineering process to develop a so-called artificial intelligence capable of driving autonomously in complex u...

  1. Autonomous Star Tracker Algorithms

    DEFF Research Database (Denmark)

    Betto, Maurizio; Jørgensen, John Leif; Kilsgaard, Søren;

    1998-01-01

    Proposal, in response to an ESA R.f.P., to design algorithms for autonomous star tracker operations.The proposal also included the development of a star tracker breadboard to test the algorithms performances.......Proposal, in response to an ESA R.f.P., to design algorithms for autonomous star tracker operations.The proposal also included the development of a star tracker breadboard to test the algorithms performances....

  2. Desde la madre-patria Española al estado de las autonomías: la idea de España en los manuales escolares (1900-2007

    Directory of Open Access Journals (Sweden)

    Ana María BADANELLI RUBIO

    2009-10-01

    Full Text Available RESUMEN: En este artículo se recoge una serie de textos representativos de cómo se explicó la idea de España a los niños en los manuales escolares editados entre 1900 y 2007 y pertenecientes fundamentalmente al nivel de la Enseñanza Primaria y a las materias de Educación Moral y Cívica o Ciencias Sociales. Se ha realizado una selección de libros atendiendo a criterios de impacto y a la variedad de modelos nacionalistas incluidos en ellos. No es nuestro propósito establecer conclusiones generales, pero sí apuntar la existencia de discursos nacionalistas que aparecen en momentos concretos y son dominantes en ese periodo, aunque coexistan, incluso dentro de la misma obra, con otros discursos de diferentes épocas o tendencias. Ilustramos esta hipótesis con algunos ejemplos entresacados de los manuales escolares elegidos. También afirmamos la importancia de realizar un análisis paralelo de textos e imágenes, ya que las imágenes transportan las representaciones simbólicas de la identidad nacional de España.ABSTRACT: In this article we present a set of representative texts about the way in which the idea of Spain was transmitted to the children in the textbooks published between 1900 and 2007 that were mainly used in Primary Education and in the subjects of Moral and Civic Education or Social Sciences. We have made the selection of books according to the criteria of impact and to the diversity of nationalistic models that they were including. It is not our aim to draw general conclusions on the topic, but we would like to point to the existence of nationalist discourses that appeared in specific moments and that were the dominant discourse of this specific historical period, although it is possible that they coexist, even inside the same book, together with other discourses belonging to other very different epochs or tendencies. We illustrate this hypothesis with some examples taken from the chosen textbooks. We also state the

  3. Architecture of autonomous systems

    Science.gov (United States)

    Dikshit, Piyush; Guimaraes, Katia; Ramamurthy, Maya; Agrawala, Ashok; Larsen, Ronald L.

    1989-01-01

    Automation of Space Station functions and activities, particularly those involving robotic capabilities with interactive or supervisory human control, is a complex, multi-disciplinary systems design problem. A wide variety of applications using autonomous control can be found in the literature, but none of them seem to address the problem in general. All of them are designed with a specific application in mind. In this report, an abstract model is described which unifies the key concepts underlying the design of automated systems such as those studied by the aerospace contractors. The model has been kept as general as possible. The attempt is to capture all the key components of autonomous systems. With a little effort, it should be possible to map the functions of any specific autonomous system application to the model presented here.

  4. Exercise and autonomic function.

    Science.gov (United States)

    Goldsmith, R L; Bloomfield, D M; Rosenwinkel, E T

    2000-03-01

    The complex interplay between the dichotomous subdivisions of the autonomic nervous system establishes and maintains a delicately tuned homeostasis in spite of an ever-changing environment. Aerobic exercise training can increase activity of the parasympathetic nervous system and decrease sympathetic activity. Conversely, it is well-documented that cardiac disease is often characterized by attenuated parasympathetic activity and heightened sympathetic tone. A correlation between autonomic disequilibrium and disease has led to the hypothesis that exercise training, as a therapy that restores the autonomic nervous system towards normal function, may be associated with, and possibly responsible for, outcome improvements in various populations. This is merely one of the many benefits that is conferred by chronic exercise training and reviewed in this issue. PMID:10758814

  5. Overview of the Autonomic Nervous System

    Science.gov (United States)

    ... reversible or progressive. Anatomy of the autonomic nervous system The autonomic nervous system is the part of ... they connect with. Function of the autonomic nervous system The autonomic nervous system controls internal body processes ...

  6. Gobierno local: Autonomía y gobernabilidad

    OpenAIRE

    José Vargas Hernández

    2015-01-01

    Este trabajo, tiene como objetivo analizar las funciones del nuevo gobierno local para dar respuesta a las demandas sociales, promover el desarrollo y regular los nuevos servicios públicos. A partir de una delimitación de los conceptos de soberanía y autonomía del nuevo gobierno local, se reconfigura una nueva estructura de gobernabilidad de los gobiernos locales que implica una mayor participación ciudadana en los procesos de toma de decisiones y la formulación de las políticas públicas, med...

  7. Las competencias emocionales

    Directory of Open Access Journals (Sweden)

    Rafael Bisquerra Alzina

    2007-01-01

    Full Text Available El concepto de competencia está en revisión debido a su complejidad. Hay diversas categorías de competencias: técnicas, profesionales, participativas, personales, básicas, clave, genéricas, transferibles, emocionales, socio-emocionales, etc. En este trabajo se toman en consideración las competencias emocionales, entendidas como un subconjunto de las competencias personales. Se exponen los trabajos en torno a estas competencias y se aporta una conceptualización y una sistemática estructurada en cinco grandes bloques: conciencia emocional, regulación emocional, autonomía emocional, competencia social, habilidades de vida y bienestar. Se hace referencia a las aplicaciones de las competencias emocionales en la empresa, la salud y la educación. De cara a la clarificación de conceptos, se establece la distinción entre inteligencia emocional, competencia emocional y educación emocional.

  8. Experimental Autonomous Vehicle Systems

    DEFF Research Database (Denmark)

    Ravn, Ole; Andersen, Nils Axel

    1998-01-01

    The paper describes the requirements for and a prototype configuration of a software architecture for control of an experimental autonomous vehicle. The test bed nature of the system is emphasised in the choice of architecture making re-configurability, data logging and extendability simple. The...

  9. ADAM: ADaptive Autonomous Machine

    NARCIS (Netherlands)

    Oosten, van Daan C.; Nijenhuis, Lucas F.J.; Bakkers, André W.P.; Vervoort, Wiek A.

    1996-01-01

    This paper describes a part of the development of an adaptive autonomous machine that is able to move in an unknown world extract knowledge out of the perceived data, has the possibility to reason, and finally has the capability to exchange experiences and knowledge with other agents. The agent is n

  10. Autonomous Security Patrol System

    OpenAIRE

    Erramouspe, Jake

    2010-01-01

    This project provides an efficient and cost-effective solution to building security and active monitoring. The security is monitored and controlled by autonomous patrol robots. Any indication of a security breach will result in an immediate alarm and activation of the robot group to subdue and tranquilize the intruder.

  11. Software Architecture for Autonomous Spacecraft

    Science.gov (United States)

    Shih, Jimmy S.

    1997-01-01

    The thesis objective is to design an autonomous spacecraft architecture to perform both deliberative and reactive behaviors. The Autonomous Small Planet In-Situ Reaction to Events (ASPIRE) project uses the architecture to integrate several autonomous technologies for a comet orbiter mission.

  12. La condicionalidad estructural de las IFIS y la autonomía de la política económica: crítica a los argumentos de la impotencia

    Directory of Open Access Journals (Sweden)

    Oscar Mario Mañán García

    2004-01-01

    Full Text Available La política de condicionalidad estructural llevada a cabo por instituciones financieras internacionales (IFIS es criticada por poner en tela de juicio la soberanía y el albedrío de países para determinar su futuro. Las exigencias impuestas por dichas instituciones, a cambio de financiamientos para el desarrollo, a menudo se utilizan como pretexto para ocultar responsabilidades de gobiernos en fracasos económicos. Hoy día, una profunda revisión de esta condicionalidad se instala tanto a partir de críticos como de sus mismos propulsores. Sustentamos que la coyuntura es alentadora para que países emergentes hagan pesar sus especificidades económicas, sociales y sus proyectos nacionales en la negociación con organismos internacionales de crédito. No obstante, la actitud de los gobiernos no inspira optimismo desmesurado y la crítica implacable de sus opositores destila cierto fatalismo.

  13. La autonomía, una visión desde el cuidado enfermero

    OpenAIRE

    Busquets Surribas, Montserrat

    2004-01-01

    En este artículo trataremos el tema de la autonomía del paciente/usuario desde la visión del cuidado enfermero. La ética nos obliga a reflexionar sobre la bondad de nuestras acciones, sobre lo que consideramos más adecuado y nos obliga a ser capaces de justificar los motivos de todo ello. Por tanto, vamos a exponer las razones profesionales que nos llevan a definir la autonomía como el eje fundamental de las relaciones entre las enfermeras y los usuarios o enfermos, sea cual sea la condición ...

  14. Hacia una orientación educativa para el desarrollo de la autonomía

    OpenAIRE

    Seguel Muñoz, Fernando Antonio

    2016-01-01

    El objeto de la Tesis es el concepto de Orientación educativa hacia la Autonomía. Se propone estudiar las percepciones de los sujetos docentes y directivos participantes en la investigación sobre las distintas dimensiones de su práctica profesional docente según la matriz que nos aporta el instrumento las Invariantes Pedagógicas de Celestín Freinet. y comprender factores intervinientes que favorecen o dificultan el desarrollo de la formación hacia la autonomía en los educandos. La muestr...

  15. Mobile Autonomous Humanoid Assistant

    Science.gov (United States)

    Diftler, M. A.; Ambrose, R. O.; Tyree, K. S.; Goza, S. M.; Huber, E. L.

    2004-01-01

    A mobile autonomous humanoid robot is assisting human co-workers at the Johnson Space Center with tool handling tasks. This robot combines the upper body of the National Aeronautics and Space Administration (NASA)/Defense Advanced Research Projects Agency (DARPA) Robonaut system with a Segway(TradeMark) Robotic Mobility Platform yielding a dexterous, maneuverable humanoid perfect for aiding human co-workers in a range of environments. This system uses stereo vision to locate human team mates and tools and a navigation system that uses laser range and vision data to follow humans while avoiding obstacles. Tactile sensors provide information to grasping algorithms for efficient tool exchanges. The autonomous architecture utilizes these pre-programmed skills to form human assistant behaviors. The initial behavior demonstrates a robust capability to assist a human by acquiring a tool from a remotely located individual and then following the human in a cluttered environment with the tool for future use.

  16. Autonomous single camera exploration

    OpenAIRE

    Vidal-Calleja, Teresa A.; Sanfeliu, Alberto; Andrade-Cetto, J.

    2006-01-01

    In this paper we present an active exploration strategy for a mobile robot navigating in 3D. The aim is to control a moving robot that autonomously builds a visual feature map while at the same time optimises its localisation in this map. The technique chooses the most appropriate commands maximising the information gain between prior states and measurements, while performing 6DOF bearing only SLAM at video rate. Maximising the mutual information helps the vehicle avoid ill-conditioned measur...

  17. Autonomous Underwater Vehicle control

    OpenAIRE

    Vidal Morató, Jordi; Gomáriz Castro, Spartacus; Manuel Lázaro, Antonio

    2005-01-01

    In this paper the system control design stages for an autonomous underwater vehicle are presented. The vehicle must be able to sail on sea surface, following a path without losing its route and once a position is reached, a dive following a perpendicular path to the surface is carried out. A two level system control are proposed. The primary level will control the navigation of the vehicle where a linear controllers are proposed. Whereas in secondary level guidance system, collision system, s...

  18. The autonomous acoustic buoy

    OpenAIRE

    Pellicer, Francisco; Reitsma, Robert; Agüera, Joaquín; Marinas, Alexandra

    2013-01-01

    The Acoustic Buoy is a project between the Laboratory of Applied Bioacoustics (LAB) and the Universitat Politècnica de Catalunya (UPC). In areas that the human activities produce high noise levels, such as oil exploration or construction, there is a need to monitor the environment for the presence of cetaceans. Another need is for fishing, to prevent endangered species from being killed. This can be done with an Autonomous Acoustic Buoy (AAB). Mooring or anchoring at to the seaflo...

  19. Mobile Intelligent Autonomous Systems

    OpenAIRE

    Jitendra R. Raol; Ajith Gopal

    2010-01-01

    Mobile intelligent autonomous systems (MIAS) is a fast emerging research area. Although it can be regarded as a general R&D area, it is mainly directed towards robotics. Several important subtopics within MIAS research are:(i) perception and reasoning, (ii) mobility and navigation,(iii) haptics and teleoperation, (iv) image fusion/computervision, (v) modelling of manipulators, (vi) hardware/software architectures for planning and behaviour learning leadingto robotic architecture, (vii) ve...

  20. Nature's Autonomous Oscillators

    Science.gov (United States)

    Mayr, H. G.; Yee, J.-H.; Mayr, M.; Schnetzler, R.

    2012-01-01

    Nonlinearity is required to produce autonomous oscillations without external time dependent source, and an example is the pendulum clock. The escapement mechanism of the clock imparts an impulse for each swing direction, which keeps the pendulum oscillating at the resonance frequency. Among nature's observed autonomous oscillators, examples are the quasi-biennial oscillation and bimonthly oscillation of the Earth atmosphere, and the 22-year solar oscillation. The oscillations have been simulated in numerical models without external time dependent source, and in Section 2 we summarize the results. Specifically, we shall discuss the nonlinearities that are involved in generating the oscillations, and the processes that produce the periodicities. In biology, insects have flight muscles, which function autonomously with wing frequencies that far exceed the animals' neural capacity; Stretch-activation of muscle contraction is the mechanism that produces the high frequency oscillation of insect flight, discussed in Section 3. The same mechanism is also invoked to explain the functioning of the cardiac muscle. In Section 4, we present a tutorial review of the cardio-vascular system, heart anatomy, and muscle cell physiology, leading up to Starling's Law of the Heart, which supports our notion that the human heart is also a nonlinear oscillator. In Section 5, we offer a broad perspective of the tenuous links between the fluid dynamical oscillators and the human heart physiology.

  1. Trigeminal autonomic cephalalgias.

    Science.gov (United States)

    Eller, M; Goadsby, P J

    2016-01-01

    The trigeminal autonomic cephalalgias (TACs) are a group of primary headache disorders characterised by lateralized symptoms: prominent headache and ipsilateral cranial autonomic features, such as conjunctival injection, lacrimation and rhinorrhea. The TACs are: cluster headache (CH), paroxysmal hemicrania (PH), short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT)/short-lasting neuralgiform headache attacks with cranial autonomic features (SUNA) and hemicrania continua (HC). Their diagnostic criteria are outlined in the International Classification of Headache Disorders, third edition-beta (ICHD-IIIb). These conditions are distinguished by their attack duration and frequency, as well as response to treatment. HC is continuous and by definition responsive to indomethacin. The main differential when considering this headache is chronic migraine. Other TACs are remarkable for their short duration and must be distinguished from other short-lasting painful conditions, such as trigeminal neuralgia and primary stabbing headache. Cluster headache is characterised by exquisitely painful attacks that occur in discrete episodes lasting 15-180 min a few times a day. In comparison, PH occurs more frequently and is of shorter duration, and like HC is responsive to indomethacin. SUNCT/SUNA is the shortest duration and highest frequency TAC; attacks can occur over a hundred times every day. PMID:24888770

  2. Autonomía, heteronomía y vulnerabilidad en el proceso de parto

    OpenAIRE

    Goberna Tricas, Josefina

    2012-01-01

    Resumen: Objetivo principal: Indagar en los principios éticos de autonomía y vulnerabilidad en la atención al partoMetodología: Reflexión ético-filosófica.Resultados principales: El parto es un proceso en que las vivencias corporales deben objetivrse en el “Yo materno”. Una transición harmoniosa entre las fases “corporales” de las contracciones y las fases de objetivación de las sensaciones, que se produce en los periodos intercontráctiles permiten una vivencia en que la mujer mantiene el con...

  3. Jam avoidance with autonomous systems

    OpenAIRE

    Tordeux, Antoine; Lassarre, Sylvain

    2015-01-01

    Many car-following models are developed for jam avoidance in highways. Two mechanisms are used to improve the stability: feedback control with autonomous models and increasing of the interaction within cooperative ones. In this paper, we compare the linear autonomous and collective optimal velocity (OV) models. We observe that the stability is significantly increased by adding predecessors in interaction with collective models. Yet autonomous and collective approaches are close when the speed...

  4. Chemical Specification of Autonomic Systems

    OpenAIRE

    Banâtre, Jean-Pierre; Fradet, Pascal; Radenac, Yann

    2004-01-01

    Autonomic computing provides a vision of information systems allowing self-management of many predefined properties. Such systems take care of their own behavior and of their interactions with other components without any external intervention. One of the major challenges concerns the expression of properties and constraints of autonomic systems. We believe that the {\\em chemical programming paradigm} (represented here by the Gamma formalism) is well-suited to the specification of autonomic s...

  5. Catecholamines and diabetic autonomic neuropathy

    DEFF Research Database (Denmark)

    Hilsted, J

    1995-01-01

    plasma catecholamine measurements is not due to changes in the clearance of catecholamines in diabetic autonomic neuropathy. The physiological responses to infused adrenaline and to noradrenaline are enhanced, for noradrenaline mainly cardiovascular responses. Adrenoceptors (alpha and beta adrenoceptors......In diabetic patients with autonomic neuropathy plasma noradrenaline concentration, used as an index of sympathetic nervous activity, is low. This decrease is, however, only found in patients with a long duration of diabetes with clinically severe autonomic neuropathy. This apparent insensitivity of...

  6. Robotics and Autonomous Systems Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Provides an environment for developing and evaluating intelligent software for both actual and simulated autonomous vehicles. Laboratory computers provide...

  7. Jam avoidance with autonomous systems

    CERN Document Server

    Tordeux, Antoine

    2016-01-01

    Many car-following models are developed for jam avoidance in highways. Two mechanisms are used to improve the stability: feedback control with autonomous models and increasing of the interaction within cooperative ones. In this paper, we compare the linear autonomous and collective optimal velocity (OV) models. We observe that the stability is significantly increased by adding predecessors in interaction with collective models. Yet autonomous and collective approaches are close when the speed difference term is taking into account. Within the linear OV models tested, the autonomous models including speed difference are sufficient to maximise the stability.

  8. Collaborating with Autonomous Agents

    Science.gov (United States)

    Trujillo, Anna C.; Cross, Charles D.; Fan, Henry; Hempley, Lucas E.; Motter, Mark A.; Neilan, James H.; Qualls, Garry D.; Rothhaar, Paul M.; Tran, Loc D.; Allen, B. Danette

    2015-01-01

    With the anticipated increase of small unmanned aircraft systems (sUAS) entering into the National Airspace System, it is highly likely that vehicle operators will be teaming with fleets of small autonomous vehicles. The small vehicles may consist of sUAS, which are 55 pounds or less that typically will y at altitudes 400 feet and below, and small ground vehicles typically operating in buildings or defined small campuses. Typically, the vehicle operators are not concerned with manual control of the vehicle; instead they are concerned with the overall mission. In order for this vision of high-level mission operators working with fleets of vehicles to come to fruition, many human factors related challenges must be investigated and solved. First, the interface between the human operator and the autonomous agent must be at a level that the operator needs and the agents can understand. This paper details the natural language human factors e orts that NASA Langley's Autonomy Incubator is focusing on. In particular these e orts focus on allowing the operator to interact with the system using speech and gestures rather than a mouse and keyboard. With this ability of the system to understand both speech and gestures, operators not familiar with the vehicle dynamics will be able to easily plan, initiate, and change missions using a language familiar to them rather than having to learn and converse in the vehicle's language. This will foster better teaming between the operator and the autonomous agent which will help lower workload, increase situation awareness, and improve performance of the system as a whole.

  9. Autonomous packaging robot

    OpenAIRE

    Vo, Van Thanh

    2010-01-01

    The objective of the autonomous packaging robot application is to replace manual product packaging in food industry with a fully automatic robot. The objective is achieved by using the combination of machine vision, central computer, sensors, microcontroller and a typical ABB robot. The method is to equip the robot with different sensors: camera as “eyes” of robot, distance sensor and microcontroller as “sense of touch” of the robot, central computer as “brain” of the robot. Because the ro...

  10. Autonomous component carrier selection

    DEFF Research Database (Denmark)

    Garcia, Luis Guilherme Uzeda; Pedersen, Klaus; Mogensen, Preben

    2009-01-01

    in local areas, basing our study case on LTE-Advanced. We present extensive network simulation results to demonstrate that a simple and robust interference management scheme, called autonomous component carrier selection allows each cell to select the most attractive frequency configuration; improving...... management and efficient system operation. Due to the expected large number of user-deployed cells, centralized network planning becomes unpractical and new scalable alternatives must be sought. In this article, we propose a fully distributed and scalable solution to the interference management problem...

  11. Autonomous mobile robot teams

    Science.gov (United States)

    Agah, Arvin; Bekey, George A.

    1994-01-01

    This paper describes autonomous mobile robot teams performing tasks in unstructured environments. The behavior and the intelligence of the group is distributed, and the system does not include a central command base or leader. The novel concept of the Tropism-Based Cognitive Architecture is introduced, which is used by the robots in order to produce behavior transforming their sensory information to proper action. The results of a number of simulation experiments are presented. These experiments include worlds where the robot teams must locate, decompose, and gather objects, and defend themselves against hostile predators, while navigating around stationary and mobile obstacles.

  12. Towards autonomous vehicular clouds

    Directory of Open Access Journals (Sweden)

    Stephan Olariu

    2011-09-01

    Full Text Available The dawn of the 21st century has seen a growing interest in vehicular networking and its myriad potential applications. The initial view of practitioners and researchers was that radio-equipped vehicles could keep the drivers informed about potential safety risks and increase their awareness of road conditions. The view then expanded to include access to the Internet and associated services. This position paper proposes and promotes a novel and more comprehensive vision namely, that advances in vehicular networks, embedded devices and cloud computing will enable the formation of autonomous clouds of vehicular computing, communication, sensing, power and physical resources. Hence, we coin the term, autonomous vehicular clouds (AVCs. A key feature distinguishing AVCs from conventional cloud computing is that mobile AVC resources can be pooled dynamically to serve authorized users and to enable autonomy in real-time service sharing and management on terrestrial, aerial, or aquatic pathways or theaters of operations. In addition to general-purpose AVCs, we also envision the emergence of specialized AVCs such as mobile analytics laboratories. Furthermore, we envision that the integration of AVCs with ubiquitous smart infrastructures including intelligent transportation systems, smart cities and smart electric power grids will have an enormous societal impact enabling ubiquitous utility cyber-physical services at the right place, right time and with right-sized resources.

  13. Nemesis Autonomous Test System

    Science.gov (United States)

    Barltrop, Kevin J.; Lee, Cin-Young; Horvath, Gregory A,; Clement, Bradley J.

    2012-01-01

    A generalized framework has been developed for systems validation that can be applied to both traditional and autonomous systems. The framework consists of an automated test case generation and execution system called Nemesis that rapidly and thoroughly identifies flaws or vulnerabilities within a system. By applying genetic optimization and goal-seeking algorithms on the test equipment side, a "war game" is conducted between a system and its complementary nemesis. The end result of the war games is a collection of scenarios that reveals any undesirable behaviors of the system under test. The software provides a reusable framework to evolve test scenarios using genetic algorithms using an operation model of the system under test. It can automatically generate and execute test cases that reveal flaws in behaviorally complex systems. Genetic algorithms focus the exploration of tests on the set of test cases that most effectively reveals the flaws and vulnerabilities of the system under test. It leverages advances in state- and model-based engineering, which are essential in defining the behavior of autonomous systems. It also uses goal networks to describe test scenarios.

  14. Learning for Autonomous Navigation

    Science.gov (United States)

    Angelova, Anelia; Howard, Andrew; Matthies, Larry; Tang, Benyang; Turmon, Michael; Mjolsness, Eric

    2005-01-01

    Robotic ground vehicles for outdoor applications have achieved some remarkable successes, notably in autonomous highway following (Dickmanns, 1987), planetary exploration (1), and off-road navigation on Earth (1). Nevertheless, major challenges remain to enable reliable, high-speed, autonomous navigation in a wide variety of complex, off-road terrain. 3-D perception of terrain geometry with imaging range sensors is the mainstay of off-road driving systems. However, the stopping distance at high speed exceeds the effective lookahead distance of existing range sensors. Prospects for extending the range of 3-D sensors is strongly limited by sensor physics, eye safety of lasers, and related issues. Range sensor limitations also allow vehicles to enter large cul-de-sacs even at low speed, leading to long detours. Moreover, sensing only terrain geometry fails to reveal mechanical properties of terrain that are critical to assessing its traversability, such as potential for slippage, sinkage, and the degree of compliance of potential obstacles. Rovers in the Mars Exploration Rover (MER) mission have got stuck in sand dunes and experienced significant downhill slippage in the vicinity of large rock hazards. Earth-based off-road robots today have very limited ability to discriminate traversable vegetation from non-traversable vegetation or rough ground. It is impossible today to preprogram a system with knowledge of these properties for all types of terrain and weather conditions that might be encountered.

  15. Expanded Perspectives on Autonomous Learners

    Science.gov (United States)

    Oxford, Rebecca L.

    2015-01-01

    This paper explores two general perspectives on autonomous learners: psychological and sociocultural. These perspectives introduce a range of theoretically grounded facets of autonomous learners, facets such as the self-regulated learner, the emotionally intelligent learner, the self-determined learner, the mediated learner, the socioculturally…

  16. Evolutionary Autonomous Health Monitoring System (EAHMS) Project

    Data.gov (United States)

    National Aeronautics and Space Administration — For supporting NASA's Robotics, Tele-Robotics and Autonomous Systems Roadmap, we are proposing the "Evolutionary Autonomous Health Monitoring System" (EAHMS) for...

  17. Autonomous Gaussian Decomposition

    CERN Document Server

    Lindner, Robert R; Murray, Claire E; Stanimirović, Snežana; Babler, Brian L; Heiles, Carl; Hennebelle, Patrick; Goss, W M; Dickey, John

    2014-01-01

    We present a new algorithm, named Autonomous Gaussian Decomposition (AGD), for automatically decomposing spectra into Gaussian components. AGD uses derivative spectroscopy and machine learning to provide optimized guesses for the number of Gaussian components in the data, and also their locations, widths, and amplitudes. We test AGD and find that it produces results comparable to human-derived solutions on 21cm absorption spectra from the 21cm SPectral line Observations of Neutral Gas with the EVLA (21-SPONGE) survey. We use AGD with Monte Carlo methods to derive the HI line completeness as a function of peak optical depth and velocity width for the 21-SPONGE data, and also show that the results of AGD are stable against varying observational noise intensity. The autonomy and computational efficiency of the method over traditional manual Gaussian fits allow for truly unbiased comparisons between observations and simulations, and for the ability to scale up and interpret the very large data volumes from the up...

  18. Autonomous Flying Controls Testbed

    Science.gov (United States)

    Motter, Mark A.

    2005-01-01

    The Flying Controls Testbed (FLiC) is a relatively small and inexpensive unmanned aerial vehicle developed specifically to test highly experimental flight control approaches. The most recent version of the FLiC is configured with 16 independent aileron segments, supports the implementation of C-coded experimental controllers, and is capable of fully autonomous flight from takeoff roll to landing, including flight test maneuvers. The test vehicle is basically a modified Army target drone, AN/FQM-117B, developed as part of a collaboration between the Aviation Applied Technology Directorate (AATD) at Fort Eustis,Virginia and NASA Langley Research Center. Several vehicles have been constructed and collectively have flown over 600 successful test flights.

  19. Mobile Intelligent Autonomous Systems

    Directory of Open Access Journals (Sweden)

    Jitendra R. Raol

    2010-01-01

    Full Text Available Mobile intelligent autonomous systems (MIAS is a fast emerging research area. Although it can be regarded as a general R&D area, it is mainly directed towards robotics. Several important subtopics within MIAS research are:(i perception and reasoning, (ii mobility and navigation,(iii haptics and teleoperation, (iv image fusion/computervision, (v modelling of manipulators, (vi hardware/software architectures for planning and behaviour learning leadingto robotic architecture, (vii vehicle-robot path and motionplanning/control, (viii human-machine interfaces for interaction between humans and robots, and (ix application of artificial neural networks (ANNs, fuzzy logic/systems (FLS,probabilistic/approximate reasoning (PAR, Bayesian networks(BN and genetic algorithms (GA to the above-mentioned problems. Also, multi-sensor data fusion (MSDF playsvery crucial role at many levels of the data fusion process:(i kinematic fusion (position/bearing tracking, (ii imagefusion (for scene recognition, (iii information fusion (forbuilding world models, and (iv decision fusion (for tracking,control actions. The MIAS as a technology is useful for automation of complex tasks, surveillance in a hazardousand hostile environment, human-assistance in very difficultmanual works, medical robotics, hospital systems, autodiagnosticsystems, and many other related civil and military systems. Also, other important research areas for MIAScomprise sensor/actuator modelling, failure management/reconfiguration, scene understanding, knowledge representation, learning and decision-making. Examples ofdynamic systems considered within the MIAS would be:autonomous systems (unmanned ground vehicles, unmannedaerial vehicles, micro/mini air vehicles, and autonomousunder water vehicles, mobile/fixed robotic systems, dexterousmanipulator robots, mining robots, surveillance systems,and networked/multi-robot systems, to name a few.Defence Science Journal, 2010, 60(1, pp.3-4,

  20. Cybersecurity for aerospace autonomous systems

    Science.gov (United States)

    Straub, Jeremy

    2015-05-01

    High profile breaches have occurred across numerous information systems. One area where attacks are particularly problematic is autonomous control systems. This paper considers the aerospace information system, focusing on elements that interact with autonomous control systems (e.g., onboard UAVs). It discusses the trust placed in the autonomous systems and supporting systems (e.g., navigational aids) and how this trust can be validated. Approaches to remotely detect the UAV compromise, without relying on the onboard software (on a potentially compromised system) as part of the process are discussed. How different levels of autonomy (task-based, goal-based, mission-based) impact this remote characterization is considered.

  1. Las estructuras

    OpenAIRE

    Alarcón Álvarez, Enrique

    2001-01-01

    La afirmación de que las primeras realizaciones arquitectónicas y de ingeniería estructural son tan antiguas como la civilización no es gratuita. En efecto, tan pronto como se desea cubrir un espacio, salvar un vano o transmitir un empuje (vertical u horizontal), es preciso el desarrollo de un conocimiento específico. El dominio de las técnicas para resolver,en particular, tales problemas ha sido transmitido a través de construcciones religiosas o áulicas que han permanecido a través de los s...

  2. Autonomic Dysregulation in Multiple Sclerosis.

    Science.gov (United States)

    Pintér, Alexandra; Cseh, Domonkos; Sárközi, Adrienn; Illigens, Ben M; Siepmann, Timo

    2015-01-01

    Multiple sclerosis (MS) is a chronic, progressive central neurological disease characterized by inflammation and demyelination. In patients with MS, dysregulation of the autonomic nervous system may present with various clinical symptoms including sweating abnormalities, urinary dysfunction, orthostatic dysregulation, gastrointestinal symptoms, and sexual dysfunction. These autonomic disturbances reduce the quality of life of affected patients and constitute a clinical challenge to the physician due to variability of clinical presentation and inconsistent data on diagnosis and treatment. Early diagnosis and initiation of individualized interdisciplinary and multimodal strategies is beneficial in the management of autonomic dysfunction in MS. This review summarizes the current literature on the most prevalent aspects of autonomic dysfunction in MS and provides reference to underlying pathophysiological mechanisms as well as means of diagnosis and treatment. PMID:26213927

  3. Framework for Autonomous Optimization Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Phoenix Integration and MIT propose to create a novel autonomous optimization tool and application programming interface (API). The API will demonstrate the ability...

  4. Autonomous Mission Operations Roadmap

    Science.gov (United States)

    Frank, Jeremy David

    2014-01-01

    As light time delays increase, the number of such situations in which crew autonomy is the best way to conduct the mission is expected to increase. However, there are significant open questions regarding which functions to allocate to ground and crew as the time delays increase. In situations where the ideal solution is to allocate responsibility to the crew and the vehicle, a second question arises: should the activity be the responsibility of the crew or an automated vehicle function? More specifically, we must answer the following questions: What aspects of mission operation responsibilities (Plan, Train, Fly) should be allocated to ground based or vehicle based planning, monitoring, and control in the presence of significant light-time delay between the vehicle and the Earth?How should the allocated ground based planning, monitoring, and control be distributed across the flight control team and ground system automation? How should the allocated vehicle based planning, monitoring, and control be distributed between the flight crew and onboard system automation?When during the mission should responsibility shift from flight control team to crew or from crew to vehicle, and what should the process of shifting responsibility be as the mission progresses? NASA is developing a roadmap of capabilities for Autonomous Mission Operations for human spaceflight. This presentation will describe the current state of development of this roadmap, with specific attention to in-space inspection tasks that crews might perform with minimum assistance from the ground.

  5. Autonomous Gaussian Decomposition

    Science.gov (United States)

    Lindner, Robert R.; Vera-Ciro, Carlos; Murray, Claire E.; Stanimirović, Snežana; Babler, Brian; Heiles, Carl; Hennebelle, Patrick; Goss, W. M.; Dickey, John

    2015-04-01

    We present a new algorithm, named Autonomous Gaussian Decomposition (AGD), for automatically decomposing spectra into Gaussian components. AGD uses derivative spectroscopy and machine learning to provide optimized guesses for the number of Gaussian components in the data, and also their locations, widths, and amplitudes. We test AGD and find that it produces results comparable to human-derived solutions on 21 cm absorption spectra from the 21 cm SPectral line Observations of Neutral Gas with the EVLA (21-SPONGE) survey. We use AGD with Monte Carlo methods to derive the H i line completeness as a function of peak optical depth and velocity width for the 21-SPONGE data, and also show that the results of AGD are stable against varying observational noise intensity. The autonomy and computational efficiency of the method over traditional manual Gaussian fits allow for truly unbiased comparisons between observations and simulations, and for the ability to scale up and interpret the very large data volumes from the upcoming Square Kilometer Array and pathfinder telescopes.

  6. Semantic Web Meets Autonomic Ubicomp

    OpenAIRE

    Belecheanu, R A; Jawaheer, G; Hoskins, A.; McCann, J; Payne, T.

    2004-01-01

    The placement of autonomic systems’ management functionality into a ubiquitous computing environment is a difficult task due to the lack of systems’ resources and the need for ‘intelligence’ to ensure that the system is selfhealing/ organising or configuring. For such systems to adapt to changes to their current environment they need to be able to (re) configure the workflow of their services. In this paper, we propose the ANS, an autonomic middleware for ubicomp devices. We briefly describe ...

  7. Design of Autonomous Gel Actuators

    OpenAIRE

    Shuji Hashimoto; Shingo Maeda; Yusuke Hara; Satoshi Nakamaru

    2011-01-01

    In this paper, we introduce autonomous gel actuators driven by chemical energy. The polymer gels prepared here have cyclic chemical reaction networks. With a cyclic reaction, the polymer gels generate periodical motion. The periodic motion of the gel is produced by the chemical energy of the oscillatory Belouzov-Zhabotinsky (BZ) reaction. We have succeeded in making synthetic polymer gel move autonomously like a living organism. This experimental fact represents the great possibility of the c...

  8. Design of Autonomous Gel Actuators

    Directory of Open Access Journals (Sweden)

    Shuji Hashimoto

    2011-01-01

    Full Text Available In this paper, we introduce autonomous gel actuators driven by chemical energy. The polymer gels prepared here have cyclic chemical reaction networks. With a cyclic reaction, the polymer gels generate periodical motion. The periodic motion of the gel is produced by the chemical energy of the oscillatory Belouzov-Zhabotinsky (BZ reaction. We have succeeded in making synthetic polymer gel move autonomously like a living organism. This experimental fact represents the great possibility of the chemical robot.

  9. Build Autonomic Agents with ABLE

    Institute of Scientific and Technical Information of China (English)

    吴吉义

    2007-01-01

    The IBM Agent Building and Learning Environment(ABLE) provides a lightweight Java~(TM) agent frame- work,a comprehensive JavaBeansTM library of intelligent software components,a set of development and test tools, and an agent platform.After the introduction to ABLE,classes and interfaces in the ABLE agent framework were put forward.At last an autonomic agent that is an ABLE-based architecture for incrementally building autonomic systems was discussed.

  10. Autonomous vertical profiler data management

    Digital Repository Service at National Institute of Oceanography (India)

    Afzulpurkar, S.; Navelkar, G.S.; Desa, E.S.; Madhan, R.; Dabholkar, N.; Prabhudesai, S.P.; Mascarenhas, A.A.M.Q.

    and reduced data �� Ease in operation and one man deployable 2 Fig.1. Autonomous Vertical Profiler Table 1. Autonomous Vertical Profiler Specifications 2. Communication Communication with the AVP is through the satellite modem... Aluminum alloy, Acetal nose & tail cones Propulsion Single DC thruster Electronics 8051 and ARM7 microcontroller based Communication Radio modem (2.4 GHz) & Satellite Transmission (Iridium) GUI Labview based Energy Source Lithium Ion Polymer batteries...

  11. Diseño de un programa para favorecer el desarrollo de la autonomía personal en mujeres con discapacidad intelectual

    OpenAIRE

    Abeledo Viesca, María

    2013-01-01

    A partir de las necesidades detectadas en una vivienda tutelada del Principado de Asturias, se ha creado un Programa para favorecer el desarrollo de la autonomía personal en mujeres con discapacidad intelectual residentes en contexto social complicado.

  12. Integrated Motion Planning and Autonomous Control Technology for Autonomous ISR Project

    Data.gov (United States)

    National Aeronautics and Space Administration — SSCI and MIT propose to design, implement and test a comprehensive Integrated Mission Planning & Autonomous Control Technology (IMPACT) for Autonomous ISR...

  13. Autonomic control of the eye

    Science.gov (United States)

    McDougal, David H.; Gamlin, Paul D.

    2016-01-01

    The autonomic nervous system influences numerous ocular functions. It does this by way of parasympathetic innervation from postganglionic fibers that originate from neurons in the ciliary and pterygopalatine ganglia, and by way of sympathetic innervation from postganglionic fibers that originate from neurons in the superior cervical ganglion. Ciliary ganglion neurons project to the ciliary body and the sphincter pupillae muscle of the iris to control ocular accommodation and pupil constriction, respectively. Superior cervical ganglion neurons project to the dilator pupillae muscle of the iris to control pupil dilation. Ocular blood flow is controlled both via direct autonomic influences on the vasculature of the optic nerve, choroid, ciliary body, and iris, as well as via indirect influences on retinal blood flow. In mammals, this vasculature is innervated by vasodilatory fibers from the pterygopalatine ganglion, and by vasoconstrictive fibers from the superior cervical ganglion. Intraocular pressure is regulated primarily through the balance of aqueous humor formation and outflow. Autonomic regulation of ciliary body blood vessels and the ciliary epithelium is an important determinant of aqueous humor formation; autonomic regulation of the trabecular meshwork and episcleral blood vessels is an important determinant of aqueous humor outflow. These tissues are all innervated by fibers from the pterygopalatine and superior cervical ganglia. In addition to these classical autonomic pathways, trigeminal sensory fibers exert local, intrinsic influences on many of these regions of the eye, as well as on some neurons within the ciliary and pterygopalatine ganglia. PMID:25589275

  14. Autonomous Landing on Moving Platforms

    KAUST Repository

    Mendoza Chavez, Gilberto

    2016-08-01

    This thesis investigates autonomous landing of a micro air vehicle (MAV) on a nonstationary ground platform. Unmanned aerial vehicles (UAVs) and micro air vehicles (MAVs) are becoming every day more ubiquitous. Nonetheless, many applications still require specialized human pilots or supervisors. Current research is focusing on augmenting the scope of tasks that these vehicles are able to accomplish autonomously. Precise autonomous landing on moving platforms is essential for self-deployment and recovery of MAVs, but it remains a challenging task for both autonomous and piloted vehicles. Model Predictive Control (MPC) is a widely used and effective scheme to control constrained systems. One of its variants, output-feedback tube-based MPC, ensures robust stability for systems with bounded disturbances under system state reconstruction. This thesis proposes a MAV control strategy based on this variant of MPC to perform rapid and precise autonomous landing on moving targets whose nominal (uncommitted) trajectory and velocity are slowly varying. The proposed approach is demonstrated on an experimental setup.

  15. ¿Politicas sociales de dependencia o de promoción de la autonomía?

    OpenAIRE

    Díaz Velázquez, Eduardo

    2010-01-01

    Este artículo pretende reflexionar acerca de cómo la restricción que se confiere al término de autonomía en la Ley 39/2006, de 14 de diciembre, de Promoción de la Autonomía Personal y Atención a las personas en situación de dependencia (entendida como autonomía para la realización de las actividades básicas de la vida diaria) ha reducido significativamente su alcance y su aplicación práctica a través del Sistema para la Autonomía y Atención a la Dependencia (SAAD). Para ello, se analiza el ci...

  16. Autonomous underwater riser inspection tool

    Energy Technology Data Exchange (ETDEWEB)

    Camerini, Claudio; Marnet, Robson [Petrobras SA, (Brazil); Freitas, Miguel; Von der Weid, Jean Pierre [CPTI/PUC-Rio, Rio de Janeiro, (Brazil); Artigas Lander, Ricardo [EngeMOVI, Curitiba, (Brazil)

    2010-07-01

    The detection of damage on the riser is a serious concern for pipeline companies. Visual examinations by remotely operated vehicle (ROV) are presently carried out to detect the defects but this process has limitations and is expensive. This paper presents the development of a new tool to ensure autonomous underwater riser inspection (AURI) that uses the riser itself for guidance. The AURI, which is autonomous in terms of control and power supply, is equipped with several cameras that perform a complete visual inspection of the riser with 100 % coverage of the external surface of the riser. The paper presents the detailed characteristics of the first AURI prototype, describes its launching procedure and provides the preliminary test results from pool testing. The results showed that the AURI is a viable system for autonomous riser inspection. Offshore tests on riser pipelines are scheduled to be performed shortly.

  17. Autonomic Function in Neurodegenerative Diseases

    DEFF Research Database (Denmark)

    Sørensen, Gertrud Laura; Jennum, Poul Jørgen

    2013-01-01

    involving brain stem areas, which is consistent with the Braak hypothesis. In the narcolepsy patients, it was shown that a reduced HRR to arousals was primarily predicted by hypocretin deficiency in both rapid-eye-movement (REM) and non-REM sleep, independent of cataplexy and other factors. The results......, which includes the cardiac centre and controls autonomic functions, and therefore autonomic dysfunction may be experienced early in the disease course. Sleep disturbances are also common non-motor complications of PD, and therefore PD patients undergo polysomnography at the Danish Center for Sleep...... narcolepsy patients on autonomic function and on the sleep transition rate. The results showed an attenuated heart rate response (HRR) in PD patients compared to controls and early PD (iRBD patients). Also iRBD patients had an attenuated HRR compared to control subjects, and the method to measure the HRR may...

  18. Discerning non-autonomous dynamics

    Energy Technology Data Exchange (ETDEWEB)

    Clemson, Philip T.; Stefanovska, Aneta, E-mail: aneta@lancaster.ac.uk

    2014-09-30

    Structure and function go hand in hand. However, while a complex structure can be relatively safely broken down into the minutest parts, and technology is now delving into nanoscales, the function of complex systems requires a completely different approach. Here the complexity clearly arises from nonlinear interactions, which prevents us from obtaining a realistic description of a system by dissecting it into its structural component parts. At best, the result of such investigations does not substantially add to our understanding or at worst it can even be misleading. Not surprisingly, the dynamics of complex systems, facilitated by increasing computational efficiency, is now readily tackled in the case of measured time series. Moreover, time series can now be collected in practically every branch of science and in any structural scale—from protein dynamics in a living cell to data collected in astrophysics or even via social networks. In searching for deterministic patterns in such data we are limited by the fact that no complex system in the real world is autonomous. Hence, as an alternative to the stochastic approach that is predominantly applied to data from inherently non-autonomous complex systems, theory and methods specifically tailored to non-autonomous systems are needed. Indeed, in the last decade we have faced a huge advance in mathematical methods, including the introduction of pullback attractors, as well as time series methods that cope with the most important characteristic of non-autonomous systems—their time-dependent behaviour. Here we review current methods for the analysis of non-autonomous dynamics including those for extracting properties of interactions and the direction of couplings. We illustrate each method by applying it to three sets of systems typical for chaotic, stochastic and non-autonomous behaviour. For the chaotic class we select the Lorenz system, for the stochastic the noise-forced Duffing system and for the non-autonomous

  19. Autonomous Home Automated Hexapod Robot

    Directory of Open Access Journals (Sweden)

    Addanki Purna Ramesh,

    2010-12-01

    Full Text Available This paper focuses on design and implementation of six legged robot that is capable of monitoring and performing house hold works independently. The Autonomous Home Automated Hexapod is developed with three AT89C52 microcontrollers which functions as brain of the robot to which all operating functions of each module are chronologically programmed in it. The legs of the robot were developed with 2 servo motors to provide two degree for each leg. Several additional sensors like TSOP1738 (IR, RF transmitter andreceiver, DS1307 (Real Time Clock have been embedded into robot in modular form to make it work autonomously.

  20. Progress towards autonomous, intelligent systems

    Science.gov (United States)

    Lum, Henry; Heer, Ewald

    1987-01-01

    An aggressive program has been initiated to develop, integrate, and implement autonomous systems technologies starting with today's expert systems and evolving to autonomous, intelligent systems by the end of the 1990s. This program includes core technology developments and demonstration projects for technology evaluation and validation. This paper discusses key operational frameworks in the content of systems autonomy applications and then identifies major technological challenges, primarily in artificial intelligence areas. Program content and progress made towards critical technologies and demonstrations that have been initiated to achieve the required future capabilities in the year 2000 era are discussed.

  1. Discerning non-autonomous dynamics

    International Nuclear Information System (INIS)

    Structure and function go hand in hand. However, while a complex structure can be relatively safely broken down into the minutest parts, and technology is now delving into nanoscales, the function of complex systems requires a completely different approach. Here the complexity clearly arises from nonlinear interactions, which prevents us from obtaining a realistic description of a system by dissecting it into its structural component parts. At best, the result of such investigations does not substantially add to our understanding or at worst it can even be misleading. Not surprisingly, the dynamics of complex systems, facilitated by increasing computational efficiency, is now readily tackled in the case of measured time series. Moreover, time series can now be collected in practically every branch of science and in any structural scale—from protein dynamics in a living cell to data collected in astrophysics or even via social networks. In searching for deterministic patterns in such data we are limited by the fact that no complex system in the real world is autonomous. Hence, as an alternative to the stochastic approach that is predominantly applied to data from inherently non-autonomous complex systems, theory and methods specifically tailored to non-autonomous systems are needed. Indeed, in the last decade we have faced a huge advance in mathematical methods, including the introduction of pullback attractors, as well as time series methods that cope with the most important characteristic of non-autonomous systems—their time-dependent behaviour. Here we review current methods for the analysis of non-autonomous dynamics including those for extracting properties of interactions and the direction of couplings. We illustrate each method by applying it to three sets of systems typical for chaotic, stochastic and non-autonomous behaviour. For the chaotic class we select the Lorenz system, for the stochastic the noise-forced Duffing system and for the non-autonomous

  2. Gas House Autonomous System Monitoring

    Science.gov (United States)

    Miller, Luke; Edsall, Ashley

    2015-01-01

    Gas House Autonomous System Monitoring (GHASM) will employ Integrated System Health Monitoring (ISHM) of cryogenic fluids in the High Pressure Gas Facility at Stennis Space Center. The preliminary focus of development incorporates the passive monitoring and eventual commanding of the Nitrogen System. ISHM offers generic system awareness, adept at using concepts rather than specific error cases. As an enabler for autonomy, ISHM provides capabilities inclusive of anomaly detection, diagnosis, and abnormality prediction. Advancing ISHM and Autonomous Operation functional capabilities enhances quality of data, optimizes safety, improves cost effectiveness, and has direct benefits to a wide spectrum of aerospace applications.

  3. Intelligent, autonomous systems in space

    Science.gov (United States)

    Lum, H.; Heer, E.

    1988-01-01

    The Space Station is expected to be equipped with intelligent, autonomous capabilities; to achieve and incorporate these capabilities, the required technologies need to be identitifed, developed and validated within realistic application scenarios. The critical technologies for the development of intelligent, autonomous systems are discussed in the context of a generalized functional architecture. The present state of this technology implies that it be introduced and applied in an evolutionary process which must start during the Space Station design phase. An approach is proposed to accomplish design information acquisition and management for knowledge-base development.

  4. Contingency Software in Autonomous Systems

    Science.gov (United States)

    Lutz, Robyn; Patterson-Hine, Ann

    2006-01-01

    This viewgraph presentation reviews the development of contingency software for autonomous systems. Autonomous vehicles currently have a limited capacity to diagnose and mitigate failures. There is a need to be able to handle a broader range of contingencies. The goals of the project are: 1. Speed up diagnosis and mitigation of anomalous situations.2.Automatically handle contingencies, not just failures.3.Enable projects to select a degree of autonomy consistent with their needs and to incrementally introduce more autonomy.4.Augment on-board fault protection with verified contingency scripts

  5. El porvenir de la ética: La autonomía moral, un valor imprescindible para nuestro tiempo

    Directory of Open Access Journals (Sweden)

    Angelo Papacchini

    2000-01-01

    Full Text Available Para el autor, la Modernidad ha dejado un sistema coherente de valores -dignidad, autonomía, solidaridad- que es necesario promover y desarrollar. En este ensayo, se pretende esbozar un balance crítico de la autonomía moral, respondiendo a las objeciones y criticas de quienes ven en ella un espejismo peligroso , una amenaza para la libertad o para los valores comunitarios.

  6. las telecomunicaciones

    Directory of Open Access Journals (Sweden)

    Veneta Andonova

    2006-01-01

    Full Text Available En este artículo se estudian las interacciones entre tres tecnologías de comunicación, telefonía fija, móvil e Internet, modelizando los efectos de red y controlando por el impacto del ingreso per capita en el país y el nivel de precios de la tecnología, dos variables clave en el proceso de difusión de tecnologías de información. Los resultados de las estimaciones, usando una base de datos de 195 países, reflejan que (1 Internet y la telefonía móvil son totalmente complementarias; (2 la telefonía fija ayuda la difusión de la móvil mientras que la móvil canibaliza la fija; (3 la telefonía fija favorece la difusión de Internet mientras que el desarrollo de Internet no tiene ningún efecto significativo sobre la difusión de la telefonía fija. Estos resultados pueden ayudar en construir escenarios más sólidos y predecir el impacto de Voice Over Internet Protocol (VOIP en la industria de telecomunicaciones.

  7. Las competencias sobre cooperativas y econom??a social

    OpenAIRE

    P??rez-Villalobos, M. Concepci??n

    2007-01-01

    El cap??tulo desarrolla la competencia sobre cooperativas y econom??a social de las Comunidades Aut??nomas espa??olas. El t??rmino "econom??a social" es nuevo en los Estatutos de autonom??a, aunque la constituci??n espa??ola apost?? fuerte por ??l como instituci??n que coopera al desarrollo del Estado social

  8. A Robust Compositional Architecture for Autonomous Systems

    Science.gov (United States)

    Brat, Guillaume; Deney, Ewen; Farrell, Kimberley; Giannakopoulos, Dimitra; Jonsson, Ari; Frank, Jeremy; Bobby, Mark; Carpenter, Todd; Estlin, Tara

    2006-01-01

    Space exploration applications can benefit greatly from autonomous systems. Great distances, limited communications and high costs make direct operations impossible while mandating operations reliability and efficiency beyond what traditional commanding can provide. Autonomous systems can improve reliability and enhance spacecraft capability significantly. However, there is reluctance to utilizing autonomous systems. In part this is due to general hesitation about new technologies, but a more tangible concern is that of reliability of predictability of autonomous software. In this paper, we describe ongoing work aimed at increasing robustness and predictability of autonomous software, with the ultimate goal of building trust in such systems. The work combines state-of-the-art technologies and capabilities in autonomous systems with advanced validation and synthesis techniques. The focus of this paper is on the autonomous system architecture that has been defined, and on how it enables the application of validation techniques for resulting autonomous systems.

  9. Afirmar la autonomía reproductiva en la disidencia religiosa

    Directory of Open Access Journals (Sweden)

    Laura Fuentes Belgrave

    2013-01-01

    Full Text Available El derecho a la autonomía reproductiva, comprendido como el acceso a la maternidadlibre, voluntaria y responsable se enfrenta en Costa Rica y Nicaragua a la oposiciónde dogmas cristianos transformados en leyes. En este mismo escenario político dondela Iglesia católica y las Iglesias evangélicas son las protagonistas, aparecen gruposminoritarios que reivindican un discurso cristiano que incorpora total o parcialmentelos derechos sexuales y reproductivos. Estas “disidencias religiosas” se involucran directamenteen la cotidianidad de las mujeres y pueden representar alianzas políticaspotenciales para el movimiento feminista.

  10. Pedagogía crítica como medio para desarrollar la autonomía moral

    OpenAIRE

    Juan Pablo Escobar Galo

    2016-01-01

    El objetivo principal de este ensayo es exponer los estudios y las propuestas contemporáneas sobre el surgimiento de la conciencia moral y el ejercicio de la autonomía moral, así como analizar si los planteamientos pedagógicos de Paulo Freire favorecen o no el ejercicio de la libertad y la configuración de la autonomía moral. Para comprender el desarrollo de la autonomía moral es necesario exponer los principios del nacimiento de la conciencia moral de Jean Piaget, los procesos de desarrollo ...

  11. Hazard Map for Autonomous Navigation

    DEFF Research Database (Denmark)

    Riis, Troels

    This dissertation describes the work performed in the area of using image analysis in the process of landing a spacecraft autonomously and safely on the surface of the Moon. This is suggested to be done using a Hazard Map. The correspondence problem between several Hazard Maps are investigated...

  12. The Bering Autonomous Target Detection

    DEFF Research Database (Denmark)

    Jørgensen, John Leif; Denver, Troelz; Betto, Maurizio;

    2003-01-01

    telescopes. The method has proven robust in operation and is well suited for use onboard spacecraft. As development target for the method and the associated instrumentation the asteroid research mission Bering has been used. Onboard a spacecraft, the autonomous detection is centered around the fully...

  13. Computing architecture for autonomous microgrids

    Science.gov (United States)

    Goldsmith, Steven Y.

    2015-09-29

    A computing architecture that facilitates autonomously controlling operations of a microgrid is described herein. A microgrid network includes numerous computing devices that execute intelligent agents, each of which is assigned to a particular entity (load, source, storage device, or switch) in the microgrid. The intelligent agents can execute in accordance with predefined protocols to collectively perform computations that facilitate uninterrupted control of the .

  14. Autonomous systems for plant protection

    DEFF Research Database (Denmark)

    Griepentrog, Hans W.; Ruckelshausen, Arno; Jørgensen, Rasmus Nyholm;

    2010-01-01

    autonomous operations related to crop protection probably commercially available in the near future. Scouting and monitoring together with the efficient application of chemicals or mechanical treatments are operations which can be successful automated. Drawbacks are that current systems are lacking robust...

  15. Autonomous Duffing-Holmes Type Chaotic Oscillator

    DEFF Research Database (Denmark)

    Tamaševičius, A.; Bumelienė, S.; Kirvaitis, R.; Mykolaitis, G.; Tamaševičiūtė, E.; Lindberg, Erik

    2009-01-01

    We have designed and built a novel Duffing type autonomous 3rd-order chaotic oscillator. In comparison with the common non-autonomous DuffingHolmes type oscillator the autonomous circuit has an internal positive feedback loop instead of an external periodic drive source. In addition, it is...

  16. Indoor Autonomous Airship Control and Navigation System

    OpenAIRE

    Fedorenko Roman; Krukhmalev Victor

    2016-01-01

    The paper presents an automatic control system for autonomous airship. The system is designed to organize autonomous flight of the mini-airship performing flight mission defined from ground control station. Structure, hardware and software implementation of indoor autonomous airship and its navigation and control system as well as experiment results are described.

  17. Indoor Autonomous Airship Control and Navigation System

    Directory of Open Access Journals (Sweden)

    Fedorenko Roman

    2016-01-01

    Full Text Available The paper presents an automatic control system for autonomous airship. The system is designed to organize autonomous flight of the mini-airship performing flight mission defined from ground control station. Structure, hardware and software implementation of indoor autonomous airship and its navigation and control system as well as experiment results are described.

  18. Autonomic computing enabled cooperative networked design

    CERN Document Server

    Wodczak, Michal

    2014-01-01

    This book introduces the concept of autonomic computing driven cooperative networked system design from an architectural perspective. As such it leverages and capitalises on the relevant advancements in both the realms of autonomic computing and networking by welding them closely together. In particular, a multi-faceted Autonomic Cooperative System Architectural Model is defined which incorporates the notion of Autonomic Cooperative Behaviour being orchestrated by the Autonomic Cooperative Networking Protocol of a cross-layer nature. The overall proposed solution not only advocates for the inc

  19. Autonomous Cryogenics Loading Operations Simulation Software: Knowledgebase Autonomous Test Engineer

    Science.gov (United States)

    Wehner, Walter S., Jr.

    2013-01-01

    Working on the ACLO (Autonomous Cryogenics Loading Operations) project I have had the opportunity to add functionality to the physics simulation software known as KATE (Knowledgebase Autonomous Test Engineer), create a new application allowing WYSIWYG (what-you-see-is-what-you-get) creation of KATE schematic files and begin a preliminary design and implementation of a new subsystem that will provide vision services on the IHM (Integrated Health Management) bus. The functionality I added to KATE over the past few months includes a dynamic visual representation of the fluid height in a pipe based on number of gallons of fluid in the pipe and implementing the IHM bus connection within KATE. I also fixed a broken feature in the system called the Browser Display, implemented many bug fixes and made changes to the GUI (Graphical User Interface).

  20. Development of autonomous operation system

    International Nuclear Information System (INIS)

    To enhance operation reliability of nuclear plants by removing human factors, study on an autonomous operation system has been carried out to substitute artificial intelligence (AI) for plant operators and, in addition, traditional controllers used in existing plants. For construction of the AI system, structurization of knowledge on the basis of the principles such as physical laws, function and structure of relevant objects and generalization of problem solving process are intended. A hierarchical distributed cooperative system configuration in employed because it is superior from the viewpoint of dynamical reorganization of system functions. This configuration is realized by an object-oriented multi-agent system. Construction of a prototype system was planned and the conceptual design was made for FBR plant in order to evaluate applicability of AI to the autonomous operation and to have a prospect for the realization of the system. The prototype system executes diagnosis, state evaluation, operation and control for the main plant subsystems. (author)

  1. An Autonomously Reciprocating Transmembrane Nanoactuator.

    Science.gov (United States)

    Watson, Matthew A; Cockroft, Scott L

    2016-01-22

    Biological molecular machines operate far from equilibrium by coupling chemical potential to repeated cycles of dissipative nanomechanical motion. This principle has been exploited in supramolecular systems that exhibit true machine behavior in solution and on surfaces. However, designed membrane-spanning assemblies developed to date have been limited to simple switches or stochastic shuttles, and true machine behavior has remained elusive. Herein, we present a transmembrane nanoactuator that turns over chemical fuel to drive autonomous reciprocating (back-and-forth) nanomechanical motion. Ratcheted reciprocating motion of a DNA/PEG copolymer threaded through a single α-hemolysin pore was induced by a combination of DNA strand displacement processes and enzyme-catalyzed reactions. Ion-current recordings revealed saw-tooth patterns, indicating that the assemblies operated in autonomous, asymmetric cycles of conformational change at rates of up to one cycle per minute. PMID:26661295

  2. Cardiovascular autonomic neuropathy in diabetes

    DEFF Research Database (Denmark)

    Spallone, Vincenza; Ziegler, Dan; Freeman, Roy;

    2011-01-01

    Cardiovascular Autonomic Neuropathy (CAN) Subcommittee of Toronto Consensus Panel on Diabetic Neuropathy worked to update CAN guidelines, with regard to epidemiology, clinical impact, diagnosis, usefulness of CAN testing, and management. CAN is the impairment of cardiovascular autonomic control...... in the setting of diabetes after exclusion of other causes. The prevalence of confirmed CAN is around 20%, and increases up to 65% with age and diabetes duration. Established risk factors for CAN are glycaemic control in type 1 and a combination of hypertension, dyslipidemia, obesity and glycaemic control...... in type 2 diabetes. CAN is a risk marker of mortality and cardiovascular morbidity, and possibly a progression promoter of diabetic nephropathy. Criteria for CAN diagnosis and staging are: 1. one abnormal cardio-vagal test identifies possible or early CAN; 2. at least two abnormal cardio-vagal tests...

  3. Treatment of gastrointestinal autonomic neuropathy.

    Science.gov (United States)

    Törnblom, Hans

    2016-03-01

    The symptoms caused by gastrointestinal autonomic neuropathy in diabetes mellitus is important to highlight since it affects a large proportion of people with diabetes, regardless of whether this is type 1 or type 2. Gastroparesis and general signs of bowel dysfunction, such as constipation, diarrhoea and abdominal pain are most often encountered and involve both pharmacological and non-pharmacological treatment options. This mini-review summarises a presentation given at the 'Diagnosis and treatment of autonomic diabetic neuropathy in the gut' symposium at the 2015 annual meeting of the EASD. It is accompanied by another mini-review on a topic from this symposium (by Azpiroz and Malagelada, DOI: 10.1007/s00125-015-3831-1 ) and a commentary by the Session Chair, Péter Kempler (DOI: 10.1007/s00125-015-3826-y ). PMID:26634570

  4. Advancing Autonomous Structural Health Monitoring

    OpenAIRE

    Grisso, Benjamin Luke

    2007-01-01

    The focus of this dissertation is aimed at advancing autonomous structural health monitoring. All the research is based on developing the impedance method for monitoring structural health. The impedance technique utilizes piezoelectric patches to interrogate structures of interested with high frequency excitations. These patches are bonded directly to the structure, so information about the health of the structure can be seen in the electrical impedance of the piezoelectric patch. However, tr...

  5. Insurance for autonomous underwater vehicles

    OpenAIRE

    Griffiths, G; N Bose; Ferguson, J.; Blidberg, D.R.

    2007-01-01

    The background and practice of insurance for autonomous underwater vehicles (AUVs) are examined. Key topics include: relationships between clients, brokers and underwriters; contract wording to provide appropriate coverage; and actions to take when an incident occurs. Factors that affect cost of insurance are discussed, including level of autonomy, team experience and operating environment. Four case studies from industry and academia illustrate how AUV insurance has worked in practice. The p...

  6. Autonomous gliding entry guidance with

    OpenAIRE

    Guo Jie; Wu Xuzhong; Tang Shengjing

    2015-01-01

    This paper presents a novel three-dimensional autonomous entry guidance for relatively high lift-to-drag ratio vehicles satisfying geographic constraints and other path constraints. The guidance is composed of onboard trajectory planning and robust trajectory tracking. For trajectory planning, a longitudinal sub-planner is introduced to generate a feasible drag-versus-energy profile by using the interpolation between upper boundary and lower boundary of entry corridor to get the desired traje...

  7. Robotic perception for autonomous navigation

    OpenAIRE

    Furlan,

    2014-01-01

    This thesis presents the research work the author carried on during his PhD on the topic of robotic perception for autonomous navigation. In particular, the efforts focus on the Self-Localization, Scene Understanding and Object Detection and Tracking problems, proposing for each of these three topics one or more approaches that present an improvement over the state-of-the-art. In some cases the proposed approaches mutually exploit the generated information to improve the quality of the final ...

  8. Prototype design for autonomous vehicle

    OpenAIRE

    Lehander, Jacob; Persson, Joel

    2015-01-01

    This thesis describes the mechanical design of a prototype vehicle developed for a company located in California. The project was based on an earlier vehicle located at KTH, Transport Labs, and investigated if the existing concept for the vehicle would work as a concept for an autonomous prototype, with focus on component layout and increased forces. The design of the vehicle is based on a concept with a carbon fiber bottom plate, two separate suspension modules with electric hub motors and s...

  9. Design of Autonomous Underwater Vehicle

    OpenAIRE

    Tadahiro Hyakudome

    2011-01-01

    There are concerns about the impact that global warming will have on our environment, and which will inevitably result in expanding deserts and rising water levels. While a lot of underwater vehicles are utilized, AUVs (Autonomous Underwater Vehicle) were considered and chosen, as the most suitable tool for conduction survey concerning these global environmental problems. AUVs can comprehensive survey because the vehicle does not have to be connected to the support vessel by tether cable. Whe...

  10. Autonomous Behavior of Computational Agents

    Czech Academy of Sciences Publication Activity Database

    Vaculín, Roman; Neruda, Roman

    Wien : Springer-Verlag, 2005 - (Ribiero, B.; Albrecht, R.; Dobnikar, A.; Pearson, D.; Steele, N.), s. 514-517 ISBN 3-211-24934-6. [ICANNGA'2005 /7./. Coimbra (PT), 21.03.2005-23.03.2005] R&D Projects: GA AV ČR 1ET100300419 Institutional research plan: CEZ:AV0Z10300504 Keywords : computational agents * autonomous behavior * reasoning Subject RIV: BA - General Mathematics

  11. Autonomic neuropathy in diabetes mellitus

    Directory of Open Access Journals (Sweden)

    Alberto eVerrotti

    2014-12-01

    Full Text Available Diabetic autonomic neuropathy (DAN is a serious and common complication of diabetes, often overlooked and misdiagnosed. It is a systemic-wide disorder that may be asymptomatic in the early stages. The most studied and clinically important form of DAN is cardiovascular autonomic neuropathy (CAN defined as the impairment of autonomic control of the cardiovascular system in patients with diabetes after exclusion of other causes. The reported prevalence of DAN varies widely depending on inconsistent definition, different diagnostic method, different patient cohorts studied. The pathogenesis is still unclear and probably multifactorial. Once DAN becomes clinically evident, no form of therapy has been identified which can effectively stop or reverse it. Prevention strategies are based on strict glycemic control with intensive insulin treatment, multifactorial intervention and lifestyle modification including control of hypertension, dyslipidemia, stop smoking, weight loss and adequate physical exercise. The present review summarizes the latest knowledge regarding clinical presentation, epidemiology, pathogenesis and management of DAN, with some mention to childhood and adolescent population.

  12. Semi autonomous mine detection system

    Energy Technology Data Exchange (ETDEWEB)

    Douglas Few; Roelof Versteeg; Herman Herman

    2010-04-01

    CMMAD is a risk reduction effort for the AMDS program. As part of CMMAD, multiple instances of semi autonomous robotic mine detection systems were created. Each instance consists of a robotic vehicle equipped with sensors required for navigation and marking, a countermine sensors and a number of integrated software packages which provide for real time processing of the countermine sensor data as well as integrated control of the robotic vehicle, the sensor actuator and the sensor. These systems were used to investigate critical interest functions (CIF) related to countermine robotic systems. To address the autonomy CIF, the INL developed RIK was extended to allow for interaction with a mine sensor processing code (MSPC). In limited field testing this system performed well in detecting, marking and avoiding both AT and AP mines. Based on the results of the CMMAD investigation we conclude that autonomous robotic mine detection is feasible. In addition, CMMAD contributed critical technical advances with regard to sensing, data processing and sensor manipulation, which will advance the performance of future fieldable systems. As a result, no substantial technical barriers exist which preclude – from an autonomous robotic perspective – the rapid development and deployment of fieldable systems.

  13. La proyección internacional de las Comunidades Autónomas en la Ley de la Acción y del Servicio Exterior del Estado (LAESE: Autonomía territorial y unidad de acción de la política exterior

    Directory of Open Access Journals (Sweden)

    Rafael García Pérez

    2014-06-01

    Full Text Available En marzo de 2014 ha entrado en vigor la Ley de la Acción y del Servicio Exterior del Estado (LAESE. Se trata de una iniciativa legislativa dirigida a modernizar y coordinar la política exterior de España que ha sido promovida por el actual gobierno del Partido Popular y que ha sido aprobada con el único respaldo de su grupo parlamentario que cuenta con mayoría absoluta en las Cortes. El principal objetivo perseguido por la ley, garantizar el principio de unidad de acción del Estado, ha situado a las Comunidades Autónomas en el centro del debate político. La mayor parte de las críticas efectuadas por los grupos de oposición se han centrado en este aspecto destacando su carácter “recentralizador”. Cabe discutir, por tanto, si la ley recorta las competencias autonómicas en materia exterior. El presente artículo analiza el tratamiento que reciben las Comunidades Autónomas en el texto de la ley y llega a la conclusión de que no recorta competencias autonómicas, aunque identifica diversas carencias que hacen dudar de la efectividad que puede alcanzar la nueva norma

  14. Autonomous Cryogenic Load Operations: KSC Autonomous Test Engineer

    Science.gov (United States)

    Shrading, Nicholas J.

    2012-01-01

    The KSC Autonomous Test Engineer (KATE) program has a long history at KSC. Now a part of the Autonomous Cryogenic Load Operations (ACLO) mission, this software system has been sporadically developed over the past 20+ years. Originally designed to provide health and status monitoring for a simple water-based fluid system, it was proven to be a capable autonomous test engineer for determining sources of failure in. the system, As part.of a new goal to provide this same anomaly-detection capability for a complicated cryogenic fluid system, software engineers, physicists, interns and KATE experts are working to upgrade the software capabilities and graphical user interface. Much progress was made during this effort to improve KATE. A display ofthe entire cryogenic system's graph, with nodes for components and edges for their connections, was added to the KATE software. A searching functionality was added to the new graph display, so that users could easily center their screen on specific components. The GUI was also modified so that it displayed information relevant to the new project goals. In addition, work began on adding new pneumatic and electronic subsystems into the KATE knowledgebase, so that it could provide health and status monitoring for those systems. Finally, many fixes for bugs, memory leaks, and memory errors were implemented and the system was moved into a state in which it could be presented to stakeholders. Overall, the KATE system was improved and necessary additional features were added so that a presentation of the program and its functionality in the next few months would be a success.

  15. Autonomous Cryogenic Load Operations: Knowledge-Based Autonomous Test Engineer

    Science.gov (United States)

    Schrading, J. Nicolas

    2013-01-01

    The Knowledge-Based Autonomous Test Engineer (KATE) program has a long history at KSC. Now a part of the Autonomous Cryogenic Load Operations (ACLO) mission, this software system has been sporadically developed over the past 20 years. Originally designed to provide health and status monitoring for a simple water-based fluid system, it was proven to be a capable autonomous test engineer for determining sources of failure in the system. As part of a new goal to provide this same anomaly-detection capability for a complicated cryogenic fluid system, software engineers, physicists, interns and KATE experts are working to upgrade the software capabilities and graphical user interface. Much progress was made during this effort to improve KATE. A display of the entire cryogenic system's graph, with nodes for components and edges for their connections, was added to the KATE software. A searching functionality was added to the new graph display, so that users could easily center their screen on specific components. The GUI was also modified so that it displayed information relevant to the new project goals. In addition, work began on adding new pneumatic and electronic subsystems into the KATE knowledge base, so that it could provide health and status monitoring for those systems. Finally, many fixes for bugs, memory leaks, and memory errors were implemented and the system was moved into a state in which it could be presented to stakeholders. Overall, the KATE system was improved and necessary additional features were added so that a presentation of the program and its functionality in the next few months would be a success.

  16. La(s) autonomía(s) en América Latina. Una expresión socio-espacial del estado novísimo y sus efectos en el proceso de integración regional. (Axe IX, Symposium 37)

    OpenAIRE

    Preciado Coronado, Jaime,; Uc, Pablo

    2010-01-01

    Este trabajo tiene como objetivo analizar la diversidad y las particularidades del fenómeno autonomista en América Latina, a fin de reflexionar sobre las tendencias del Estado novísimo que se gesta en la región, y enriquecer el debate en torno a la integración regional. A partir del reconocimiento del imaginario socio-espacial del lugar y la localidad que, al generar un discurso geopolítico que afecta y redefine al Estado, impacta paralelamente sobre la idea y proyecto de integración regional...

  17. Límites a la autonomía personal de los cónyuges y convivientes en el régimen matrimonial argentino

    OpenAIRE

    Molina de Juan, Mariel F.

    2015-01-01

    El presente ensayo analiza las principales reformas que el Código Civil y Comercial argentino introduce al Régimen patrimonial familiar. Definidas las bases constitucionales del nuevo sistema, se enuncian las posibles manifestaciones de la autonomía personal de los cónyuges y convivientes, y como contrapartida, se ponen de relieve las restricciones que la ley impone a las facultades de autorregulación de los efectos económicos del matrimonio o la unión convivencial, con fund...

  18. Autonomic Management for Multi-agent Systems

    OpenAIRE

    Nadir kamal Salih; G. K. Viju; Mohamed, Abdelmotalib A.

    2011-01-01

    Autonomic computing is a computing system that can manage itself by self-configuration, self-healing, self-optimizing and self-protection. Researchers have been emphasizing the strong role that multi agent systems can play progressively towards the design and implementation of complex autonomic systems. The important of autonomic computing is to create computing systems capable of managing themselves to a far greater extent than they do today. With the nature of autonomy, reactivity, socialit...

  19. Gastrointestinal autonomic nerve tumor of the stomach

    OpenAIRE

    Meshikhes, Abdul-Wahed N.; Al-Garni, Ayed A.; Sami A Al-Momen; Al-Nahawi, Mamdouh; Abu Subaih, Jawad

    2014-01-01

    Patient: Female, 32 Final Diagnosis: Gastrintestinal Autonomic Nerve Tumor (GANT) Symptoms: anemia • anorexia • fatigue • fever • hearburn • nausea • weight loss Medication: — Clinical Procedure: — Specialty: Gastroenterology and Hepatology Objective: Rare disease Background: Gastrointestinal autonomic nerve tumors (GANT) are extremely rare tumors that are related to gastrointestinal autonomic nervous plexuses. They are distinguished from stromal tumors by their unique ultrastructural feature...

  20. Test and Evaluation of Autonomous Ground Vehicles

    OpenAIRE

    Yang Sun; Guangming Xiong; Weilong Song; Jianwei Gong; Huiyan Chen

    2014-01-01

    A preestablished test and evaluation system will benefit the development of autonomous ground vehicles. This paper proposes a design method for a scientific and comprehensive test and evaluation system for autonomous ground vehicles competitions. It can better guide and regulate the development of China’s autonomous ground vehicles. The test and evaluation system includes the test contents, the test environment, the test methods, and the evaluation methods. Using a hierarchical design approac...

  1. Obstacle Detection and Avoidance Autonomous Car

    OpenAIRE

    K.Vasavi; M.V.S.Praveen

    2014-01-01

    Driving models are needed by many researchers to improve traffic safety and to advance autonomous vehicle design. To be most useful, a driving model must state specifically what information is needed and how it is processed. So we developed an “Obstacle Avoidance and Detection Autonomous Car” based on sensor application. The essential part of this autonomous car is that it drives taking the energy from solar panel. This paper explains the method of interfacing the solar panel, relay circuit b...

  2. Tele/Autonomous Robot For Nuclear Facilities

    Science.gov (United States)

    Backes, Paul G.; Tso, Kam S.

    1994-01-01

    Fail-safe tele/autonomous robotic system makes it unnecessary for human technicians to enter nuclear-fuel-reprocessing facilities and other high-radiation or otherwise hazardous industrial environments. Used to carry out experiments as exchanging equipment modules, turning bolts, cleaning surfaces, and grappling turning objects by use of mixture of autonomous actions and teleoperation with either single arm or two cooperating arms. System capable of fully autonomous operation, teleoperation or shared control.

  3. Self-Adapting Reactive Autonomous Agents

    Science.gov (United States)

    Andrecut, M.; Ali, M. K.

    This paper describes a new self-adapting control algorithm for reactive autonomous agents. The architecture of the autonomous agents integrates the reactive behavior with reinforcement learning. We show how these components perform on-line adaptation of the autonomous agents to various complex navigation situations by constructing an internal model of the environment. Also, a discussion on cooperation and coordination of teams of agents is presented.

  4. Autonomous vehicle control systems for safe crossroads

    OpenAIRE

    Alonso Ruiz, Javier; Milanés Montero, Vicente; Pérez, Joshué; Onieva Caracuel, Enrique; González Fernández-Vallejo, Carlos; Pedro Lucio, María Teresa de

    2011-01-01

    This article presents a cooperative manoeuvre among three dual mode cars – vehicles equipped with sensors and actuators, and that can be driven either manually or autonomously. One vehicle is driven autonomously and the other two are driven manually. The main objective is to test two decision algorithms for priority conflict resolution at intersections so that a vehicle autonomously driven can take their own decision about crossing an intersection mingling with manually driven cars without th...

  5. Algunas consideraciones sobre las transformaciones actuales de las finanzas locales en Francia

    Directory of Open Access Journals (Sweden)

    Marcela Astudillo-Moya

    2014-01-01

    Full Text Available En el análisis de las transformaciones actuales de las finanzas locales en Francia, realizado en este artículo, destaca la importancia de la administración pública local. Con base en el método hipotético-deductivo se concluye que uno de los desafíos a los que debe hacer frente el futuro de la hacienda local en Francia es el de garantizar un crecimiento estable en un territorio cohesionado, para lo que se requiere de una distribución de fuentes impositivas coordinada con la administración pública central, de tal manera que las colectividades locales cuenten con autonomía de decisión.

  6. Information for Successful Interaction with Autonomous Systems

    Science.gov (United States)

    Malin, Jane T.; Johnson, Kathy A.

    2003-01-01

    Interaction in heterogeneous mission operations teams is not well matched to classical models of coordination with autonomous systems. We describe methods of loose coordination and information management in mission operations. We describe an information agent and information management tool suite for managing information from many sources, including autonomous agents. We present an integrated model of levels of complexity of agent and human behavior, which shows types of information processing and points of potential error in agent activities. We discuss the types of information needed for diagnosing problems and planning interactions with an autonomous system. We discuss types of coordination for which designs are needed for autonomous system functions.

  7. Autonomic dysfunction in primary sleep disorders.

    Science.gov (United States)

    Miglis, Mitchell G

    2016-03-01

    The autonomic nervous system plays an important role in the coordination of many important physiologic functions during sleep. Many patients with untreated sleep disorders will describe symptoms of autonomic impairment, and a majority of patients with autonomic impairment have some form of sleep disorder. This article will explore possible explanations for this connection, as well as review the current literature on autonomic impairment in common primary sleep disorders including obstructive sleep apnea, insomnia, restless legs syndrome, periodic limb movement disorder, narcolepsy, and rapid eye movement sleep behavior disorder. PMID:27198946

  8. Design of a Miniature Autonomous Surveillance Robot

    Institute of Scientific and Technical Information of China (English)

    ZHENG Chang-e; HUANG Qiang; HUANG Yuan-can

    2009-01-01

    The small size of miniature robots poses great challenges for the mechanical and deetrieal design and the implementation of autonomous capabilities.In this paper,the mechanical and electrical design for a twowheeled cylindrical miniature autonomous robot ("BMS-1",BIT MicroScout-1) is presented and some autonomous capabilities are implemented by multiple sensors and some arithmetic models.Several experimental results show that BMS-1 is useful for surveillance in confined spaces and suitable for large-scale surveillance due to some autonomous capabilities.

  9. A necessary and sufficient condition for transforming autonomous systems into linear autonomous Birkhoffian systems

    International Nuclear Information System (INIS)

    The problem of transforming autonomous systems into Birkhoffian systems is studied. A reasonable form of linear autonomous Birkhoff equations is given. By combining them with the undetermined tensor method, a necessary and sufficient condition for an autonomous system to have a representation in terms of linear autonomous Birkhoff equations is obtained. The methods of constructing Birkhoffian dynamical functions are given. Two examples are given to illustrate the application of the results. (electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics)

  10. Autonomic Function in Neurodegenerative Diseases

    DEFF Research Database (Denmark)

    Sørensen, Gertrud Laura; Jennum, Poul Jørgen

    2013-01-01

    and REM sleep control, indicating that the disorder may serve as a human model for the sleep-wake and REM sleep flip-flop switches. The increased frequency of transitions may cause increased sympathetic activity during sleep and thereby increased heart rate, or the increased heart rate could be caused...... confirm that hypocretin deficiency affects the autonomic nervous system of patients with narcolepsy and that the hypocretin system is important for proper heart rate modulation at rest.Furthermore, it was shown that hypocretin deficiency and cataplexy are associated with signs of destabilized sleep-wake...

  11. Autonomous sensor manager agents (ASMA)

    Science.gov (United States)

    Osadciw, Lisa A.

    2004-04-01

    Autonomous sensor manager agents are presented as an algorithm to perform sensor management within a multisensor fusion network. The design of the hybrid ant system/particle swarm agents is described in detail with some insight into their performance. Although the algorithm is designed for the general sensor management problem, a simulation example involving 2 radar systems is presented. Algorithmic parameters are determined by the size of the region covered by the sensor network, the number of sensors, and the number of parameters to be selected. With straight forward modifications, this algorithm can be adapted for most sensor management problems.

  12. Konstruktion av en autonom vindstation

    OpenAIRE

    Larsson, Joel; Starck, Patrik

    2015-01-01

    Construction of an autonomous wind station was a project with the goal of creating a product that could collect wind data from a sensor and then transfer this data to a server wirelessly over the GSM network. The device would be powered by batteries and solar cells and function fully without requiring external power supply. This required that a small computer was constructed and programmed to store and send data at predetermined cycle times and programming of a server that received the sent d...

  13. BART: The Czech Autonomous Observatory

    Czech Academy of Sciences Publication Activity Database

    Nekola, Martin; Hudec, René; Jelínek, M.; Kubánek, P.; Štrobl, Jan; Polášek, Cyril

    2010-01-01

    Roč. 2010, Spec. Is. (2010), 103986/1-103986/5. ISSN 1687-7969. [Workshop on Robotic Autonomous Observatories. Málaga, 18.05.2009-21.05.2009] R&D Projects: GA ČR GA205/08/1207 Grant ostatní: ESA(XE) ESA-PECS project No. 98023; Spanish Ministry of Education and Science(ES) AP2003-1407 Institutional research plan: CEZ:AV0Z10030501 Keywords : robotic telescope * BART * gamma ray bursts Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics http://www.hindawi.com/journals/aa/2010/103986.html

  14. Knowledge acquisition for autonomous systems

    Science.gov (United States)

    Lum, Henry; Heer, Ewald

    1988-01-01

    Knowledge-based capabilities for autonomous aerospace systems, such as the NASA Space Station, must encompass conflict-resolution functions comparable to those of human operators, with all elements of the system working toward system goals in a concurrent, asynchronous-but-coordinated fashion. Knowledge extracted from a design database will support robotic systems by furnishing geometric, structural, and causal descriptions required for repair, disassembly, and assembly. The factual knowledge for these databases will be obtained from a master database through a technical management information system, and it will in many cases have to be augmented by domain-specific heuristic knowledge acquired from domain experts.

  15. Topological entropy of autonomous flows

    Energy Technology Data Exchange (ETDEWEB)

    Badii, R. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)

    1997-06-01

    When studying fluid dynamics, especially in a turbulent regime, it is crucial to estimate the number of active degrees of freedom or of localized structures in the system. The topological entropy quantifies the exponential growth of the number of `distinct` orbits in a dynamical system as a function of their length, in the infinite spatial resolution limit. Here, I illustrate a novel method for its evaluation, which extends beyond maps and is applicable to any system, including autonomous flows: these are characterized by lack of a definite absolute time scale for the orbit lengths. (author) 8 refs.

  16. The Autonomous Pathogen Detection System

    Energy Technology Data Exchange (ETDEWEB)

    Dzenitis, J M; Makarewicz, A J

    2009-01-13

    We developed, tested, and now operate a civilian biological defense capability that continuously monitors the air for biological threat agents. The Autonomous Pathogen Detection System (APDS) collects, prepares, reads, analyzes, and reports results of multiplexed immunoassays and multiplexed PCR assays using Luminex{copyright} xMAP technology and flow cytometer. The mission we conduct is particularly demanding: continuous monitoring, multiple threat agents, high sensitivity, challenging environments, and ultimately extremely low false positive rates. Here, we introduce the mission requirements and metrics, show the system engineering and analysis framework, and describe the progress to date including early development and current status.

  17. Autonomous Real Time Requirements Tracing

    Science.gov (United States)

    Plattsmier, George; Stetson, Howard

    2014-01-01

    One of the more challenging aspects of software development is the ability to verify and validate the functional software requirements dictated by the Software Requirements Specification (SRS) and the Software Detail Design (SDD). Insuring the software has achieved the intended requirements is the responsibility of the Software Quality team and the Software Test team. The utilization of Timeliner-TLX(sup TM) Auto- Procedures for relocating ground operations positions to ISS automated on-board operations has begun the transition that would be required for manned deep space missions with minimal crew requirements. This transition also moves the auto-procedures from the procedure realm into the flight software arena and as such the operational requirements and testing will be more structured and rigorous. The autoprocedures would be required to meet NASA software standards as specified in the Software Safety Standard (NASASTD- 8719), the Software Engineering Requirements (NPR 7150), the Software Assurance Standard (NASA-STD-8739) and also the Human Rating Requirements (NPR-8705). The Autonomous Fluid Transfer System (AFTS) test-bed utilizes the Timeliner-TLX(sup TM) Language for development of autonomous command and control software. The Timeliner-TLX(sup TM) system has the unique feature of providing the current line of the statement in execution during real-time execution of the software. The feature of execution line number internal reporting unlocks the capability of monitoring the execution autonomously by use of a companion Timeliner-TLX(sup TM) sequence as the line number reporting is embedded inside the Timeliner-TLX(sup TM) execution engine. This negates I/O processing of this type data as the line number status of executing sequences is built-in as a function reference. This paper will outline the design and capabilities of the AFTS Autonomous Requirements Tracker, which traces and logs SRS requirements as they are being met during real-time execution of the

  18. Fuzzy control of autonomous robot

    International Nuclear Information System (INIS)

    An autonomous robot which can move and find its own route to a destination by means of fuzzy control is under development. An AI technique is utilized to determine the route to a destination from geographical information gathered through an ITV camera mounted on the robot. Information on robot location is also gained through an ITV camera, and, by applying fuzzy inference operation, the robot's movement is controlled. This paper describes the methods that are used for finding a route and controlling movement. Effectiveness of the proposed methods has been confirmed through actual robot movement tests and through computer simulations. (author)

  19. Autonomous Dome for Robotic Telescope

    CERN Document Server

    Kumar, Akash; Ganesh, Shashikiran

    2016-01-01

    Physical Research Laboratory operates a 50cm robotic observatory at Mount Abu. This Automated Telescope for Variability Studies (ATVS) makes use of Remote Telescope System 2 (RTS2) for autonomous operations. The observatory uses a 3.5m dome from Sirius Observatories. We have developed electronics using Arduino electronic circuit boards with home grown logic and software to control the dome operations. We are in the process of completing the drivers to link our Arduino based dome controller with RTS2. This document is a short description of the various phases of the development and their integration to achieve the required objective.

  20. Plant Watering Autonomous Mobile Robot

    Directory of Open Access Journals (Sweden)

    Hema Nagaraja

    2012-07-01

    Full Text Available Now days, due to busy routine life, people forget to water their plants. In this paper, we present a completely autonomous and a cost-effective system for watering indoor potted plants placed on an even surface. The system comprises of a mobile robot and a temperature-humidity sensing module. The system is fully adaptive to any environment and takes into account the watering needs of the plants using the temperature-humidity sensing module. The paper describes the hardware architecture of the fully automated watering system, which uses wireless communication to communicate between the mobile robot and the sensing module. This gardening robot is completely portable and is equipped with a Radio Frequency Identification (RFID module, a microcontroller, an on-board water reservoir and an attached water pump. It is capable of sensing the watering needs of the plants, locating them and finally watering them autonomously without any human intervention. Mobilization of the robot to the potted plant is achieved by using a predefined path. For identification, an RFID tag is attached to each potted plant. The paper also discusses the detailed implementation of the system supported with complete circuitry. Finally, the paper concludes with system performance including the analysis of the water carrying capacity and time requirements to water a set of plants.

  1. Multi-agent autonomous system

    Science.gov (United States)

    Fink, Wolfgang (Inventor); Dohm, James (Inventor); Tarbell, Mark A. (Inventor)

    2010-01-01

    A multi-agent autonomous system for exploration of hazardous or inaccessible locations. The multi-agent autonomous system includes simple surface-based agents or craft controlled by an airborne tracking and command system. The airborne tracking and command system includes an instrument suite used to image an operational area and any craft deployed within the operational area. The image data is used to identify the craft, targets for exploration, and obstacles in the operational area. The tracking and command system determines paths for the surface-based craft using the identified targets and obstacles and commands the craft using simple movement commands to move through the operational area to the targets while avoiding the obstacles. Each craft includes its own instrument suite to collect information about the operational area that is transmitted back to the tracking and command system. The tracking and command system may be further coupled to a satellite system to provide additional image information about the operational area and provide operational and location commands to the tracking and command system.

  2. Autonomous Robotic Inspection in Tunnels

    Science.gov (United States)

    Protopapadakis, E.; Stentoumis, C.; Doulamis, N.; Doulamis, A.; Loupos, K.; Makantasis, K.; Kopsiaftis, G.; Amditis, A.

    2016-06-01

    In this paper, an automatic robotic inspector for tunnel assessment is presented. The proposed platform is able to autonomously navigate within the civil infrastructures, grab stereo images and process/analyse them, in order to identify defect types. At first, there is the crack detection via deep learning approaches. Then, a detailed 3D model of the cracked area is created, utilizing photogrammetric methods. Finally, a laser profiling of the tunnel's lining, for a narrow region close to detected crack is performed; allowing for the deduction of potential deformations. The robotic platform consists of an autonomous mobile vehicle; a crane arm, guided by the computer vision-based crack detector, carrying ultrasound sensors, the stereo cameras and the laser scanner. Visual inspection is based on convolutional neural networks, which support the creation of high-level discriminative features for complex non-linear pattern classification. Then, real-time 3D information is accurately calculated and the crack position and orientation is passed to the robotic platform. The entire system has been evaluated in railway and road tunnels, i.e. in Egnatia Highway and London underground infrastructure.

  3. Structured control for autonomous robots

    International Nuclear Information System (INIS)

    To operate in rich, dynamic environments, autonomous robots must be able to effectively utilize and coordinate their limited physical and occupational resources. As complexity increases, it becomes necessary to impose explicit constraints on the control of planning, perception, and action to ensure that unwanted interactions between behaviors do not occur. This paper advocates developing complex robot systems by layering reactive behaviors onto deliberative components. In this structured control approach, the deliberative components handle normal situations and the reactive behaviors, which are explicitly constrained as to when and how they are activated, handle exceptional situations. The Task Control Architecture (TCA) has been developed to support this approach. TCA provides an integrated set of control constructs useful for implementing deliberative and reactive behaviors. The control constructs facilitate modular and evolutionary system development: they are used to integrate and coordinate planning, perception, and execution, and to incrementally improve the efficiency and robustness of the robot systems. To date, TCA has been used in implementing a half-dozen mobile robot systems, including an autonomous six-legged rover and indoor mobile manipulator

  4. Autonomía, información y cuidado enfermero

    OpenAIRE

    Busquets Surribas, Montserrat

    2014-01-01

    Este artículo plantea la necesidad de que las enfermeras participen activamente en el proceso de información al paciente/usuario, sobre todo cuando las noticias son malas. Repasa el concepto de autonomía y propone el cuidado como el referente ético para que la información y comunicación ayuden a la persona a comprender su situación y tomar decisiones. De esta manera, centra la responsabilidad de la enfermera en la información y generación de espacios y contextos que fomenten y respeten la aut...

  5. Autonomous Control of Space Reactor Systems

    Energy Technology Data Exchange (ETDEWEB)

    Belle R. Upadhyaya; K. Zhao; S.R.P. Perillo; Xiaojia Xu; M.G. Na

    2007-11-30

    Autonomous and semi-autonomous control is a key element of space reactor design in order to meet the mission requirements of safety, reliability, survivability, and life expectancy. Interrestrial nuclear power plants, human operators are avilable to perform intelligent control functions that are necessary for both normal and abnormal operational conditions.

  6. Intelligent autonomous systems 12. Vol. 2. Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Sukhan [Sungkyunkwan Univ., Gyeonggi-Do (Korea, Republic of). College of Information and Communication Engineering; Yoon, Kwang-Joon [Konkuk Univ., Seoul (Korea, Republic of); Cho, Hyungsuck [Daegu Gyeongbuk Institute of Science and Technology, Daegu (Korea, Republic of); Lee, Jangmyung (eds.) [Pusan National Univ. (Korea, Republic of). Dept. of Electronics Engineering

    2013-02-01

    Recent research in Intelligent and Autonomous Systems. Volume 2 of the proceedings of the 12th International Conference IAS-12, held June 26-29, 2012, jeju Island, Korea. Written by leading experts in the field. Intelligent autonomous systems are emerged as a key enabler for the creation of a new paradigm of services to humankind, as seen by the recent advancement of autonomous cars licensed for driving in our streets, of unmanned aerial and underwater vehicles carrying out hazardous tasks on-site, and of space robots engaged in scientific as well as operational missions, to list only a few. This book aims at serving the researchers and practitioners in related fields with a timely dissemination of the recent progress on intelligent autonomous systems, based on a collection of papers presented at the 12th International Conference on Intelligent Autonomous Systems, held in Jeju, Korea, June 26-29, 2012. With the theme of ''Intelligence and Autonomy for the Service to Humankind, the conference has covered such diverse areas as autonomous ground, aerial, and underwater vehicles, intelligent transportation systems, personal/domestic service robots, professional service robots for surgery/rehabilitation, rescue/security and space applications, and intelligent autonomous systems for manufacturing and healthcare. This volume 2 includes contributions devoted to Service Robotics and Human-Robot Interaction and Autonomous Multi-Agent Systems and Life Engineering.

  7. Autonomic Nervous System and Immune System Interactions

    OpenAIRE

    Kenney, MJ; Ganta, CK

    2014-01-01

    The present review assesses the current state of literature defining integrative autonomic-immune physiological processing, focusing on studies that have employed electrophysiological, pharmacological, molecular biological and central nervous system experimental approaches. Central autonomic neural networks are informed of peripheral immune status via numerous communicating pathways, including neural and non-neural. Cytokines and other immune factors affect the level of activity and responsiv...

  8. Autonomous Control of Space Reactor Systems

    International Nuclear Information System (INIS)

    Autonomous and semi-autonomous control is a key element of space reactor design in order to meet the mission requirements of safety, reliability, survivability, and life expectancy. Interrestrial nuclear power plants, human operators are available to perform intelligent control functions that are necessary for both normal and abnormal operational conditions

  9. A Practical Approach to Autonomic Dysfunction in Patients with Headache.

    Science.gov (United States)

    Ailani, Jessica

    2016-05-01

    The presence of autonomic symptoms can make the diagnosis of headache challenging. While commonly seen with the trigeminal autonomic cephalalgias, autonomic dysfunction can also be present in patients with migraine, or with a variety of secondary headaches. The pathophysiology of cranial autonomic symptoms in headache is based between the trigeminal system and the hypothalamus. This article will review the pathophysiology and presence of autonomic dysfunction in headache and will provide techniques to help in headache diagnosis in patients with autonomic dysfunction. PMID:27021770

  10. Autonomic Management for Multi-agent Systems

    Directory of Open Access Journals (Sweden)

    Nadir kamal Salih

    2011-09-01

    Full Text Available Autonomic computing is a computing system that can manage itself by self-configuration, self-healing, self-optimizing and self-protection. Researchers have been emphasizing the strong role that multi agent systems can play progressively towards the design and implementation of complex autonomic systems. The important of autonomic computing is to create computing systems capable of managing themselves to a far greater extent than they do today. With the nature of autonomy, reactivity, sociality and pro-activity, software agents are promising to make autonomic computing system a reality. This paper mixed multi-agent system with autonomic feature that completely hides its complexity from users/services. Mentioned Java Application Development Framework (JADE as platform example of this environment, could applied to web services as front end to users. With multi agent support it also provides adaptability, intelligence, collaboration, goal oriented interactions, flexibility, mobility and persistence in software systems.

  11. Autonomic Management for Multi-agent Systems

    CERN Document Server

    Salih, Nadir K; Viju, PG K; Mohamed, Abdelmotalib A

    2011-01-01

    Autonomic computing is a computing system that can manage itself by self-configuration, self-healing, self-optimizing and self-protection. Researchers have been emphasizing the strong role that multi agent systems can play progressively towards the design and implementation of complex autonomic systems. The important of autonomic computing is to create computing systems capable of managing themselves to a far greater extent than they do today. With the nature of autonomy, reactivity, sociality and pro-activity, software agents are promising to make autonomic computing system a reality. This paper mixed multi-agent system with autonomic feature that completely hides its complexity from users/services. Mentioned Java Application Development Framework as platform example of this environment, could applied to web services as front end to users. With multi agent support it also provides adaptability, intelligence, collaboration, goal oriented interactions, flexibility, mobility and persistence in software systems

  12. Cardiovascular autonomic neuropathy in the diabetic patients.

    Directory of Open Access Journals (Sweden)

    Maria Eugenia Niño Mantilla

    2007-11-01

    Full Text Available the dysfunction of the autonomic nervous system is a serious problem in diabetic patients. The cardiovacular autonomic neuropathy is the most important autonomic dysfuntion for it´s implication in the increasesof the mortality rate in diabetis patients. tis ethiopatogenesis is the result of a multifactorial process caused by chronic hyperglycemia, ending up in damage of the autonomic fibers thet innervate the heart and blood vessels, leading to dysfuntional hearth rate control and abnormal vascular dynamics. the associated clinical manifestations include orthotatic hypotension, excecise intolerance, intraoperative cardiovascular liability and silent myocardial ischemia. Being important its recognition, quantitative test to evaluate the cardiovascular funtion, to value its evolution and the effects of the treatment ahould be done, being the most used, the hearth rate response to standing test, and teh valsalva maneuver. the handling of this entity is done improving control of glucose blood levels its the most effective way to prevent the cardiovascular autonomic neuropathy in the diabetic patients.

  13. De la dependencia a la autonomía: ¿dónde queda la educación?

    OpenAIRE

    Amando Vega Fuentes

    2007-01-01

    El desarrollo de un Sistema Nacional de Dependencia aborda la necesidad de apoyos a las personas con discapacidad. Pero existe la necesidad de superar el enfoque médico-asistencial dominante para llegar a un planteamiento respetuoso de los derechos de las personas con discapacidad que piden atención integral y calidad de vida. Este artículo pretende analizar los conceptos de autonomía y dependencia con sus implicaciones para la atención de las personas con discapacidad, plantea...

  14. Soporte de autonomía en Educación Física: evidencias para mejorar el proceso de enseñanza

    OpenAIRE

    Luis García-González; Alberto Aibar Solana; Javier Sevil Serrano; Francisco J. Almolda Tomás; José A. Julián Clemente

    2015-01-01

    Las experiencias del alumnado en Educación Física es- tán determinadas por la intervención del docente, que puede ejercer su labor desde un extremo controlador hasta otro basado en el soporte de autonomía (Moreno- Murcia, Conde & Sáenz-López, 2012). En este sentido, el presente estudio pretende evaluar la influencia del soporte de autonomía en Educación Física durante una unidad didáctica de orientación deportiva, sobre la autonomía percibida por los...

  15. Uranium potentiometer determination in inactive atmosphere with ferric sulfate

    International Nuclear Information System (INIS)

    Potenciometric titration of Uranium with (SO4)3 Fe2, using Cd as reducing agent has been studied; acidity and sensibility of this reaction are fixed. This method yields good results for uranite group, removing previously phosphate by ion exchange with Amberlite IR-120. (Author)

  16. Autonomous navigation system and method

    Science.gov (United States)

    Bruemmer, David J. [Idaho Falls, ID; Few, Douglas A. [Idaho Falls, ID

    2009-09-08

    A robot platform includes perceptors, locomotors, and a system controller, which executes instructions for autonomously navigating a robot. The instructions repeat, on each iteration through an event timing loop, the acts of defining an event horizon based on the robot's current velocity, detecting a range to obstacles around the robot, testing for an event horizon intrusion by determining if any range to the obstacles is within the event horizon, and adjusting rotational and translational velocity of the robot accordingly. If the event horizon intrusion occurs, rotational velocity is modified by a proportion of the current rotational velocity reduced by a proportion of the range to the nearest obstacle and translational velocity is modified by a proportion of the range to the nearest obstacle. If no event horizon intrusion occurs, translational velocity is set as a ratio of a speed factor relative to a maximum speed.

  17. Autonomous Spacecraft Navigation With Pulsars

    CERN Document Server

    Becker, Werner; Jessner, Axel

    2013-01-01

    An external reference system suitable for deep space navigation can be defined by fast spinning and strongly magnetized neutron stars, called pulsars. Their beamed periodic signals have timing stabilities comparable to atomic clocks and provide characteristic temporal signatures that can be used as natural navigation beacons, quite similar to the use of GPS satellites for navigation on Earth. By comparing pulse arrival times measured on-board a spacecraft with predicted pulse arrivals at a reference location, the spacecraft position can be determined autonomously and with high accuracy everywhere in the solar system and beyond. The unique properties of pulsars make clear already today that such a navigation system will have its application in future astronautics. In this paper we describe the basic principle of spacecraft navigation using pulsars and report on the current development status of this novel technology.

  18. Sleep in trigeminal autonomic cephalagias

    DEFF Research Database (Denmark)

    Barløse, Mads; Lund, Nunu; Jensen, Rigmor Højland

    2014-01-01

    PURPOSE OF REVIEW: Sleep and cluster headache (CH) are believed to be interconnected but the precise relation to the other trigeminal autonomic cephalalgias (TACs) is uncertain and complex. A better understanding of these relations may eventually lead to a clarification of the underlying mechanisms...... and eventually to more effective therapeutic regimens. This review aims to evaluate the existing literature on the subject of TACs and sleep. An association between episodic CH and distinct macrostructural sleep phases, especially the relation to rapid eye movement (REM) sleep, has been described in...... some older studies but could not be confirmed in other, more recent studies. Investigations into the microstructure of sleep in these patients are lacking. Only a few case reports exist on the relation between sleep and other TACs. SUMMARY: Recent studies do not find an association between CH and REM...

  19. Digital autonomous terminal access communications

    Science.gov (United States)

    Novacki, S.

    1987-01-01

    A significant problem for the Bus Monitor Unit is to identify the source of a given transmission. This problem arises from the fact that the label which identifies the source of the transmission as it is put into the bus is intercepted by the Digital Autonomous Terminal Access Communications (DATAC) terminal and removed from the transmission. Thus, a given subsystem will see only data associated with a label and never the identifying label itself. The Bus Monitor must identify the source of the transmission so as to be able to provide some type of error identification/location in the event that some problem with the data transmission occurs. Steps taken to alleviate this problem by modifications to the DATAC terminal are discussed.

  20. An Autonomous Flight Safety System

    Science.gov (United States)

    Bull, James B.; Lanzi, Raymond J.

    2007-01-01

    The Autonomous Flight Safety System (AFSS) being developed by NASA s Goddard Space Flight Center s Wallops Flight Facility and Kennedy Space Center has completed two successful developmental flights and is preparing for a third. AFSS has been demonstrated to be a viable architecture for implementation of a completely vehicle based system capable of protecting life and property in event of an errant vehicle by terminating the flight or initiating other actions. It is capable of replacing current human-in-the-loop systems or acting in parallel with them. AFSS is configured prior to flight in accordance with a specific rule set agreed upon by the range safety authority and the user to protect the public and assure mission success. This paper discusses the motivation for the project, describes the method of development, and presents an overview of the evolving architecture and the current status.

  1. Testbed for an autonomous system

    Science.gov (United States)

    Dikshit, Piyush; Guimaraes, Katia; Ramamurthy, Maya; Agrawala, Ashok K.; Larsen, Ronald L.

    1989-01-01

    In previous works we have defined a general architectural model for autonomous systems, which can easily be mapped to describe the functions of any automated system (SDAG-86-01), and we illustrated that model by applying it to the thermal management system of a space station (SDAG-87-01). In this note, we will further develop that application and design the detail of the implementation of such a model. First we present the environment of our application by describing the thermal management problem and an abstraction, which was called TESTBED, that includes a specific function for each module in the architecture, and the nature of the interfaces between each pair of blocks.

  2. Autonomous Infrastructure for Observatory Operations

    Science.gov (United States)

    Seaman, R.

    This is an era of rapid change from ancient human-mediated modes of astronomical practice to a vision of ever larger time domain surveys, ever bigger "big data", to increasing numbers of robotic telescopes and astronomical automation on every mountaintop. Over the past decades, facets of a new autonomous astronomical toolkit have been prototyped and deployed in support of numerous space missions. Remote and queue observing modes have gained significant market share on the ground. Archives and data-mining are becoming ubiquitous; astroinformatic techniques and virtual observatory standards and protocols are areas of active development. Astronomers and engineers, planetary and solar scientists, and researchers from communities as diverse as particle physics and exobiology are collaborating on a vast range of "multi-messenger" science. What then is missing?

  3. Design of Autonomous Underwater Vehicle

    Directory of Open Access Journals (Sweden)

    Tadahiro Hyakudome

    2011-03-01

    Full Text Available There are concerns about the impact that global warming will have on our environment, and which will inevitably result in expanding deserts and rising water levels. While a lot of underwater vehicles are utilized, AUVs (Autonomous Underwater Vehicle were considered and chosen, as the most suitable tool for conduction survey concerning these global environmental problems. AUVs can comprehensive survey because the vehicle does not have to be connected to the support vessel by tether cable. When such underwater vehicles are made, it is necessary to consider about the following things. 1 Seawater and Water Pressure Environment, 2 Sink, 3 There are no Gas or Battery Charge Stations, 4 Global Positioning System cannot use, 5 Radio waves cannot use. In the paper, outline of above and how deal about it are explained.

  4. Autonomous Industrial Mobile Manipulation (AIMM)

    DEFF Research Database (Denmark)

    Hvilshøj, Mads; Bøgh, Simon; Nielsen, Oluf Skov;

    2012-01-01

    ; sustainability, configuration, adaptation, autonomy, positioning, manipulation and grasping, robot-robot interaction, human-robot interaction, process quality, dependability, and physical properties. Findings - The concise yet comprehensive review provides both researchers (academia) and practitioners (industry......Purpose - The purpose of this paper is to provide a review of the interdisciplinary research field Autonomous Industrial Mobile Manipulation (AIMM), with an emphasis on physical implementations and applications. Design/methodology/approach - Following an introduction to AIMM, this paper...... investigates the missing links and gaps between the research and developments efforts and the real-world application requirements, in order to bring the AIMM technology from laboratories to manufacturing environments. The investigation is based on 12 general application requirements for robotics...

  5. APDS: Autonomous Pathogen Detection System

    Energy Technology Data Exchange (ETDEWEB)

    Langlois, R G; Brown, S; Burris, L; Colston, B; Jones, L; Makarewicz, T; Mariella, R; Masquelier, D; McBride, M; Milanovich, F; Masarabadi, S; Venkateswaran, K; Marshall, G; Olson, D; Wolcott, D

    2002-02-14

    An early warning system to counter bioterrorism, the Autonomous Pathogen Detection System (APDS) continuously monitors the environment for the presence of biological pathogens (e.g., anthrax) and once detected, it sounds an alarm much like a smoke detector warns of a fire. Long before September 11, 2001, this system was being developed to protect domestic venues and events including performing arts centers, mass transit systems, major sporting and entertainment events, and other high profile situations in which the public is at risk of becoming a target of bioterrorist attacks. Customizing off-the-shelf components and developing new components, a multidisciplinary team developed APDS, a stand-alone system for rapid, continuous monitoring of multiple airborne biological threat agents in the environment. The completely automated APDS samples the air, prepares fluid samples in-line, and performs two orthogonal tests: immunoassay and nucleic acid detection. When compared to competing technologies, APDS is unprecedented in terms of flexibility and system performance.

  6. Wireless autonomous device data transmission

    Science.gov (United States)

    Sammel, Jr., David W. (Inventor); Cain, James T. (Inventor); Mickle, Marlin H. (Inventor); Mi, Minhong (Inventor)

    2013-01-01

    A method of communicating information from a wireless autonomous device (WAD) to a base station. The WAD has a data element having a predetermined profile having a total number of sequenced possible data element combinations. The method includes receiving at the WAD an RF profile transmitted by the base station that includes a triggering portion having a number of pulses, wherein the number is at least equal to the total number of possible data element combinations. The method further includes keeping a count of received pulses and wirelessly transmitting a piece of data, preferably one bit, to the base station when the count reaches a value equal to the stored data element's particular number in the sequence. Finally, the method includes receiving the piece of data at the base station and using the receipt thereof to determine which of the possible data element combinations the stored data element is.

  7. Maneras de trabajar las emociones y los sentimientos en las escuelas de educación infantil

    OpenAIRE

    Echeverría, Ane

    2012-01-01

    Aprender a reconocer y gestionar nuestras emociones es primordial para la elaboración de nuestra autonomía, autoconcepto e interacción social, entre otras cosas. La educación tiene como fin atender y colaborar en el desarrollo integral del alumno. Esto así, la escuela juega un papel importante, puesto que las emociones y los sentimientos se presentan desde la infancia en el aula de Educación Infantil. En este trabajo se definen conceptos como los sentimientos y las emociones, se analiza la ed...

  8. Current challenges in autonomous vehicle development

    Science.gov (United States)

    Connelly, J.; Hong, W. S.; Mahoney, R. B., Jr.; Sparrow, D. A.

    2006-05-01

    The field of autonomous vehicles is a rapidly growing one, with significant interest from both government and industry sectors. Autonomous vehicles represent the intersection of artificial intelligence (AI) and robotics, combining decision-making with real-time control. Autonomous vehicles are desired for use in search and rescue, urban reconnaissance, mine detonation, supply convoys, and more. The general adage is to use robots for anything dull, dirty, dangerous or dumb. While a great deal of research has been done on autonomous systems, there are only a handful of fielded examples incorporating machine autonomy beyond the level of teleoperation, especially in outdoor/complex environments. In an attempt to assess and understand the current state of the art in autonomous vehicle development, a few areas where unsolved problems remain became clear. This paper outlines those areas and provides suggestions for the focus of science and technology research. The first step in evaluating the current state of autonomous vehicle development was to develop a definition of autonomy. A number of autonomy level classification systems were reviewed. The resulting working definitions and classification schemes used by the authors are summarized in the opening sections of the paper. The remainder of the report discusses current approaches and challenges in decision-making and real-time control for autonomous vehicles. Suggested research focus areas for near-, mid-, and long-term development are also presented.

  9. Cardiovascular autonomic dysfunctions and sleep disorders.

    Science.gov (United States)

    Calandra-Buonaura, Giovanna; Provini, Federica; Guaraldi, Pietro; Plazzi, Giuseppe; Cortelli, Pietro

    2016-04-01

    Animal and human studies have shown that disorders of the autonomic nervous system may influence sleep physiology. Conversely, sleep disorders may be associated with autonomic dysfunctions. The current review describes the clinical presentation, supposed pathogenetic mechanisms and the diagnostic and prognostic implications of impaired cardiovascular autonomic control in sleep disorders. This dysfunction may result from a common pathogenetic mechanism affecting both autonomic cardiovascular control and sleep, as in fatal familial insomnia, or it may be mainly caused by the sleep disorder, as observed in obstructive sleep apnoea. For other sleep disorders, like primary insomnia, restless legs syndrome, narcolepsy type 1 and rapid eye movement sleep behaviour disorder, the causal link with the autonomic dysfunction and its possible impact on health remains unsettled. Given its clinical implications, most of the data available suggest that a systematic assessment of the association between sleep disorders and impaired autonomic control of the cardiovascular system is warranted. Understanding the mechanism of this association may also yield insights into the interaction between the autonomic nervous system and sleep. PMID:26146026

  10. Autonomous underwater pipeline monitoring navigation system

    Science.gov (United States)

    Mitchell, Byrel; Mahmoudian, Nina; Meadows, Guy

    2014-06-01

    This paper details the development of an autonomous motion-control and navigation algorithm for an underwater autonomous vehicle, the Ocean Server IVER3, to track long linear features such as underwater pipelines. As part of this work, the Nonlinear and Autonomous Systems Laboratory (NAS Lab) developed an algorithm that utilizes inputs from the vehicles state of the art sensor package, which includes digital imaging, digital 3-D Sidescan Sonar, and Acoustic Doppler Current Profilers. The resulting algorithms should tolerate real-world waterway with episodic strong currents, low visibility, high sediment content, and a variety of small and large vessel traffic.

  11. Autonomous Demand Response for Primary Frequency Regulation

    Energy Technology Data Exchange (ETDEWEB)

    Donnelly, Matt; Trudnowski, Daniel J.; Mattix, S.; Dagle, Jeffery E.

    2012-02-28

    The research documented within this report examines the use of autonomous demand response to provide primary frequency response in an interconnected power grid. The work builds on previous studies in several key areas: it uses a large realistic model (i.e., the interconnection of the western United States and Canada); it establishes a set of metrics that can be used to assess the effectiveness of autonomous demand response; and it independently adjusts various parameters associated with using autonomous demand response to assess effectiveness and to examine possible threats or vulnerabilities associated with the technology.

  12. Autonomous Bicycle: The First Self Balanced Ride

    OpenAIRE

    Ånnestad, Dag Christian

    2011-01-01

    The idea of an autonomous bicycle originates from Jens G. Balchen who wanted to make an unmanned autonomous bicycle. The idea was picked up by Amund Skavhaug who extended the idea with the concept of using an inverted pendulum to simulate a leaning rider. The previous attempts to develop a bicycle capable of performing an autonomous ride has so far all ended in failure. The main reason for the Department of Engineering Cybernetics is to develop such a bicycle is for use in recruitment and mot...

  13. La alteridad como lo nuevo radical y el proyecto de autonomía: huellas de Castoriadis en discursos sobre naturaleza y género

    OpenAIRE

    Maria del Socorro Foio

    2016-01-01

    Este artículo trata sobre las tesis de Castoriadis sobre alteridad y autonomía, vinculándolas con las teorías de Affpel Marglin y de Leff referidas a las significaciones imaginarias sociales de la naturaleza y las de Butler y de Haraway acerca de la construcción social del sexo y el género. Según Castoriadis, la creación de significados es siempre creación de una multiplicidad. Su ontología se funda en la noción de la multiplicidad del ser, revelada como diferencia -donde el ser es identi...

  14. La autonomía en la práctica de la enfermería

    Directory of Open Access Journals (Sweden)

    Dianne Tapp

    2005-01-01

    Full Text Available La autonomía ha sido vista como un indicador de la profesionalización de la disciplina. La autonomía de enfermería ha sido identificada como una variable importante que afecta la percepci ón de la enfermera en relación con su satisfacción en el trabajo, los ambientes positivos de su práctica profesional y la calidad del cuidado de enfermería. La suposición de que un aspecto clave de la autonom ía de enfermería es actuar con un juicio y práctica independiente, fue cuestionada en un estudio interpretativo que exploró la forma como las enfermeras entienden la autonomía en su práctica clínica y en su trabajo. Este artículo describe el proyecto de investigación, y explora el énfasis que hacen las enfermeras sobre los aspectos inherentes al ejercicio de la autonomía en su trabajo clínico. Las descripciones de sus relaciones con los médicos, colegas y directores de enfermería, ofrecen muchos ejemplos en los cuales la práctica autó- noma puede ser respaldada y fortalecida. Este artículo también discute estas posibilidades para que este concepto se pueda llevar a cabo en tres áreas claves: crear ambientes de práctica que enriquezcan la pericia clínica y la toma de decisiones; hacer posible que las enfermeras practiquen, aplicando todas sus capacidades educativas, sus experiencias y competencias; y fortalecer la práctica multidisciplinaria con colaboración.

  15. Development of a Commercially Viable, Modular Autonomous Robotic Systems for Converting any Vehicle to Autonomous Control

    Science.gov (United States)

    Parish, David W.; Grabbe, Robert D.; Marzwell, Neville I.

    1994-01-01

    A Modular Autonomous Robotic System (MARS), consisting of a modular autonomous vehicle control system that can be retrofit on to any vehicle to convert it to autonomous control and support a modular payload for multiple applications is being developed. The MARS design is scalable, reconfigurable, and cost effective due to the use of modern open system architecture design methodologies, including serial control bus technology to simplify system wiring and enhance scalability. The design is augmented with modular, object oriented (C++) software implementing a hierarchy of five levels of control including teleoperated, continuous guidepath following, periodic guidepath following, absolute position autonomous navigation, and relative position autonomous navigation. The present effort is focused on producing a system that is commercially viable for routine autonomous patrolling of known, semistructured environments, like environmental monitoring of chemical and petroleum refineries, exterior physical security and surveillance, perimeter patrolling, and intrafacility transport applications.

  16. Propuesta didáctica para trabajar la autonomía personal en el aula desde el modelo cognitivo

    OpenAIRE

    Aguilera-Alonso, Cristina

    2016-01-01

    El propósito de este trabajo Fin de Grado es diseñar actividades de autorregulación para trabajar la autonomía en Educación Infantil. Este trabajo se fundamenta en el concepto del sistema de autorregulación que propone la psicopedagogía cognitiva para trabajar la autonomía global del niño con habilidades específicas. Se han consultado los trabajos de Bornas, y se ha tomado como referencia el programa PEMPA para fundamentar las actividades. Asimismo, se proponen actividades concretas para a...

  17. Las versiones homericas Las versiones homericas

    Directory of Open Access Journals (Sweden)

    Jorge Luis Borges

    2008-04-01

    Full Text Available Ningún problema tan consustancial con las letras con su modesto misterio como el que propone una traducción. Un olvido animal por la vanidad, el tenor de confesar procesos mentales que adivinamos peligrosamente comunes, el conato de mantener intacta y central una reserve incalculable de sombre, velan las tales escrituras directas. La traducciOn, en cambio, parece destinada a ilustrar la discusión estitica. El modelo propuesto a su imitaciOn es un texto visible, no un labirint° inestimable de proyectos preteritos o la acatada tentaciOn momentanea de una facilidad. Bertrand Russell define un objeto extern( como un sistema circular, irradiante, de impresiones posibles; lo mismo puede aseverarse de un texto, dadas las repercusiones incalculables de lo verbal. Un parcial y precioso documento de las vicisitudes que sufre queda en sus traducciones.

  18. Autonomic Dysfunction in Patients with Mild to Moderate Alzheimer's Disease

    DEFF Research Database (Denmark)

    Jensen-Dahm, Christina; Waldemar, Gunhild; Staehelin Jensen, Troels;

    2015-01-01

    BACKGROUND: Autonomic function has received little attention in Alzheimer's disease (AD). AD pathology has an impact on brain regions which are important for central autonomic control, but it is unclear if AD is associated with disturbance of autonomic function. OBJECTIVE: To investigate autonomic...

  19. Las lenguas en las sociedades del conocimiento

    Directory of Open Access Journals (Sweden)

    Álvarez, J. Francisco

    2008-12-01

    Full Text Available Languages become a strategic resource for information and knowledge societies. By expressing and sharing knowledge by means of languages, every culture generates deposits of knowledge, which can be transferred and exchanged among different epistemic communities. The contemporary technologies of information and communication have changed the structure of knowledge flows. Globalization of knowledge poses a great challenge to every language, including the Spanish one. In order to survive in the digital world, they should develop technolanguages. The lemma “Thinking in Spanish” implies a new model of governance for the Ibero-American knowledge communities.En las sociedades de la información y el conocimiento las lenguas se convierten en un recurso estratégico. Al expresar y compartir conocimiento por medio de los idiomas, las culturas generan yacimientos de conocimiento, que pueden ser transferidos e intercambiados entre comunidades epistémicas diferentes. Las actuales tecnologías de la información y la comunicación han cambiado la estructura de los flujos de conocimiento. La globalización del conocimiento plantea un gran desafío a todas las lenguas, incluyendo la española. Para sobrevivir en el mundo digital, los lenguajes han de convertirse en tecnolenguajes. El lema “Pensar en español” aporta un nuevo modelo de gobernanza para las comunidades iberoamericanas del conocimiento.

  20. A Primer on Autonomous Aerial Vehicle Design

    Science.gov (United States)

    Coppejans, Hugo H. G.; Myburgh, Herman C.

    2015-01-01

    There is a large amount of research currently being done on autonomous micro-aerial vehicles (MAV), such as quadrotor helicopters or quadcopters. The ability to create a working autonomous MAV depends mainly on integrating a simultaneous localization and mapping (SLAM) solution with the rest of the system. This paper provides an introduction for creating an autonomous MAV for enclosed environments, aimed at students and professionals alike. The standard autonomous system and MAV automation are discussed, while we focus on the core concepts of SLAM systems and trajectory planning algorithms. The advantages and disadvantages of using remote processing are evaluated, and recommendations are made regarding the viability of on-board processing. Recommendations are made regarding best practices to serve as a guideline for aspirant MAV designers. PMID:26633410

  1. A Primer on Autonomous Aerial Vehicle Design

    Directory of Open Access Journals (Sweden)

    Hugo H. G. Coppejans

    2015-12-01

    Full Text Available There is a large amount of research currently being done on autonomous micro-aerial vehicles (MAV, such as quadrotor helicopters or quadcopters. The ability to create a working autonomous MAV depends mainly on integrating a simultaneous localization and mapping (SLAM solution with the rest of the system. This paper provides an introduction for creating an autonomous MAV for enclosed environments, aimed at students and professionals alike. The standard autonomous system and MAV automation are discussed, while we focus on the core concepts of SLAM systems and trajectory planning algorithms. The advantages and disadvantages of using remote processing are evaluated, and recommendations are made regarding the viability of on-board processing. Recommendations are made regarding best practices to serve as a guideline for aspirant MAV designers.

  2. A Primer on Autonomous Aerial Vehicle Design.

    Science.gov (United States)

    Coppejans, Hugo H G; Myburgh, Herman C

    2015-01-01

    There is a large amount of research currently being done on autonomous micro-aerial vehicles (MAV), such as quadrotor helicopters or quadcopters. The ability to create a working autonomous MAV depends mainly on integrating a simultaneous localization and mapping (SLAM) solution with the rest of the system. This paper provides an introduction for creating an autonomous MAV for enclosed environments, aimed at students and professionals alike. The standard autonomous system and MAV automation are discussed, while we focus on the core concepts of SLAM systems and trajectory planning algorithms. The advantages and disadvantages of using remote processing are evaluated, and recommendations are made regarding the viability of on-board processing. Recommendations are made regarding best practices to serve as a guideline for aspirant MAV designers. PMID:26633410

  3. Autonomic html interface generator for web applications

    CERN Document Server

    Bassil, Youssef; 10.5121/ijwest.2012.3104

    2012-01-01

    Recent advances in computing systems have led to a new digital era in which every area of life is nearly interrelated with information technology. However, with the trend towards large-scale IT systems, a new challenge has emerged. The complexity of IT systems is becoming an obstacle that hampers the manageability, operability, and maintainability of modern computing infrastructures. Autonomic computing popped up to provide an answer to these ever-growing pitfalls. Fundamentally, autonomic systems are self-configuring, self-healing, self-optimizing, and self-protecting; hence, they can automate all complex IT processes without human intervention. This paper proposes an autonomic HTML web-interface generator based on XML Schema and Style Sheet specifications for self-configuring graphical user interfaces of web applications. The goal of this autonomic generator is to automate the process of customizing GUI web-interfaces according to the ever-changing business rules, policies, and operating environment with th...

  4. An introduction to autonomous control systems

    Science.gov (United States)

    Antsaklis, Panos J.; Passino, Kevin M.; Wang, S. J.

    1991-01-01

    The functions, characteristics, and benefits of autonomous control are outlined. An autonomous control functional architecture for future space vehicles that incorporates the concepts and characteristics described is presented. The controller is hierarchical, with an execution level (the lowest level), coordination level (middle level), and management and organization level (highest level). The general characteristics of the overall architecture, including those of the three levels, are explained, and an example to illustrate their functions is given. Mathematical models for autonomous systems, including 'logical' discrete event system models, are discussed. An approach to the quantitative, systematic modeling, analysis, and design of autonomous controllers is also discussed. It is a hybrid approach since it uses conventional analysis techniques based on difference and differential equations and new techniques for the analysis of the systems described with a symbolic formalism such as finite automata. Some recent results from the areas of planning and expert systems, machine learning, artificial neural networks, and the area restructurable controls are briefly outlined.

  5. AGATE: Autonomous Go and Touch Exploration Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The innovation (AGATE, for Autonomous Go And Touch Exploration) will enable single-sol "go and touch" instrument placement from distances of up to five meters for...

  6. Autonomic symptoms in idiopathic REM behavior disorder

    DEFF Research Database (Denmark)

    Ferini-Strambi, Luigi; Oertel, Wolfgang; Dauvilliers, Yves;

    2014-01-01

    Patients with idiopathic REM sleep behavior disorder (iRBD) are at very high risk of developing neurodegenerative synucleinopathies, which are disorders with prominent autonomic dysfunction. Several studies have documented autonomic dysfunction in iRBD, but large-scale assessment of autonomic...... symptoms has never been systematically performed. Patients with polysomnography-confirmed iRBD (318 cases) and controls (137 healthy volunteers and 181 sleep center controls with sleep diagnoses other than RBD) were recruited from 13 neurological centers in 10 countries from 2008 to 2011. A validated scale...... to study the disorders of the autonomic nervous system in Parkinson's disease (PD) patients, the SCOPA-AUT, was administered to all the patients and controls. The SCOPA-AUT consists of 25 items assessing the following domains: gastrointestinal, urinary, cardiovascular, thermoregulatory, pupillomotor...

  7. Autonomic Closure for Large Eddy Simulation

    Science.gov (United States)

    King, Ryan; Hamlington, Peter; Dahm, Werner J. A.

    2015-11-01

    A new autonomic subgrid-scale closure has been developed for large eddy simulation (LES). The approach poses a supervised learning problem that captures nonlinear, nonlocal, and nonequilibrium turbulence effects without specifying a predefined turbulence model. By solving a regularized optimization problem on test filter scale quantities, the autonomic approach identifies a nonparametric function that represents the best local relation between subgrid stresses and resolved state variables. The optimized function is then applied at the grid scale to determine unknown LES subgrid stresses by invoking scale similarity in the inertial range. A priori tests of the autonomic approach on homogeneous isotropic turbulence show that the new approach is amenable to powerful optimization and machine learning methods and is successful for a wide range of filter scales in the inertial range. In these a priori tests, the autonomic closure substantially improves upon the dynamic Smagorinsky model in capturing the instantaneous, statistical, and energy transfer properties of the subgrid stress field.

  8. LEO AUTONOMOUS NAVIGATION BASED ON IMAGE MOTION

    Institute of Scientific and Technical Information of China (English)

    DUANFang; LIUJian-ye; YUFeng

    2005-01-01

    A method of LEO autonomous navigation is presented based on the nonlinear satellite velocity relative to the earth. The velocity is detected by a high-speed camera, with the attitude information detected by a star sensor. Compared with traditional autonomous navigation by landmark identification, the satellite velocity relarive to the earth is obtained by correlativity analysis of images. It does not need to recognize ground objects or views. Since it is not necessary to pre-store the database of ground marks, lots of memory space can be saved.The state and observation equations are constructed, and the filtering is processed by the Kalman filter. Simulation results show that the system has high autonomous navigation precision in LEO autonomous navigation.

  9. Rover: Autonomous concepts for Mars exploration

    Science.gov (United States)

    Baiget, A.; Castets, B.; Chochon, H.; Hayard, M.; Lamarre, H.; Lamothe, A.

    1993-01-01

    The development of a mobile, autonomous vehicle that will be launched towards an unknown planet is considered. The rover significant constraints are: Ariane 5 compatibility, Earth/Mars transfer capability, 1000 km autonomous moving in Mars environment, on board localization, and maximum science capability. Two different types of subsystem were considered: classical subsystems (mechanical and mechanisms, thermal, telecommunications, power, onboard data processing) and robotics subsystem, (perception/navigation, autonomous displacement generation, autonomous localization). The needs of each subsystem were studied in terms of energy and data handling capability, in order to choose an on board architecture which best use the available capability, by means of specialized parts. A compromise must always be done between every subsystem in order to obtain the real need with respect to the goal, for example: between perception/navigation and the motion capability. A compromise must also be found between mechanical assembly and calibration need, which is a real problem.

  10. La potestad reguladora de las Comunidades Autónomas en materia del ISD y su reflejo en las transmisiones de empresas familiares

    OpenAIRE

    Carlos Carbajo Nogal

    2011-01-01

    Las Comunidades Autónomas han establecido una serie de beneficios fiscales en el ISD, que se suman a las aplicables en el plano estatal y con las que comparten necesariamente protagonismo, cuyo análisis nos facilita una idea exacta del régimen fiscal aplicable en este impuesto a la transmisión de la empresa familia que no es uniforme en todos los Entes territoriales.The Autonomous Regions have established certain tax benefits in the ISD, which they add the applicable ones in the state plane a...

  11. Autonomous intelligent cruise control system

    Science.gov (United States)

    Baret, Marc; Bomer, Thierry T.; Calesse, C.; Dudych, L.; L'Hoist, P.

    1995-01-01

    Autonomous intelligent cruise control (AICC) systems are not only controlling vehicles' speed but acting on the throttle and eventually on the brakes they could automatically maintain the relative speed and distance between two vehicles in the same lane. And more than just for comfort it appears that these new systems should improve the safety on highways. By applying a technique issued from the space research carried out by MATRA, a sensor based on a charge coupled device (CCD) was designed to acquire the reflected light on standard-mounted car reflectors of pulsed laser diodes emission. The CCD is working in a unique mode called flash during transfer (FDT) which allows identification of target patterns in severe optical environments. It provides high accuracy for distance and angular position of targets. The absence of moving mechanical parts ensures high reliability for this sensor. The large field of view and the high measurement rate give a global situation assessment and a short reaction time. Then, tracking and filtering algorithms have been developed in order to select the target, on which the equipped vehicle determines its safety distance and speed, taking into account its maneuvering and the behaviors of other vehicles.

  12. Autonomic Findings in Takotsubo Cardiomyopathy.

    Science.gov (United States)

    Norcliffe-Kaufmann, Lucy; Kaufmann, Horacio; Martinez, Jose; Katz, Stuart D; Tully, Lisa; Reynolds, Harmony R

    2016-01-15

    Takotsubo cardiomyopathy (TC) often occurs after emotional or physical stress. Norepinephrine levels are unusually high in the acute phase, suggesting a hyperadrenergic mechanism. Comparatively little is known about parasympathetic function in patients with TC. We sought to characterize autonomic function at rest and in response to physical and emotional stimuli in 10 women with a confirmed history of TC and 10 age-matched healthy women. Sympathetic and parasympathetic activity was assessed at rest and during baroreflex stimulation (Valsalva maneuver and tilt testing), cognitive stimulation (Stroop test), and emotional stimulation (event recall, patients). Ambulatory blood pressure monitoring and measurement of brachial artery flow-mediated vasodilation were also performed. TC women (tested an average of 37 months after the event) had excessive pressor responses to cognitive stress (Stroop test: p emotional arousal (recall of TC event: p = 0.03 vs baseline). Pressor responses to hemodynamic stimuli were also amplified (Valsalva overshoot: p <0.05) and prolonged (duration: p <0.01) in the TC women compared with controls. Plasma catecholamine levels did not differ between TC women and controls. Indexes of parasympathetic (vagal) modulation of heart rate induced by respiration and cardiovagal baroreflex gain were significantly decreased in the TC women versus controls. In conclusion, even long after the initial episode, women with previous episode of TC have excessive sympathetic responsiveness and reduced parasympathetic modulation of heart rate. Impaired baroreflex control may therefore play a role in TC. PMID:26743349

  13. Mechanical Autonomous Stochastic Heat Engine

    Science.gov (United States)

    Serra-Garcia, Marc; Foehr, André; Molerón, Miguel; Lydon, Joseph; Chong, Christopher; Daraio, Chiara

    2016-07-01

    Stochastic heat engines are devices that generate work from random thermal motion using a small number of highly fluctuating degrees of freedom. Proposals for such devices have existed for more than a century and include the Maxwell demon and the Feynman ratchet. Only recently have they been demonstrated experimentally, using, e.g., thermal cycles implemented in optical traps. However, recent experimental demonstrations of classical stochastic heat engines are nonautonomous, since they require an external control system that prescribes a heating and cooling cycle and consume more energy than they produce. We present a heat engine consisting of three coupled mechanical resonators (two ribbons and a cantilever) subject to a stochastic drive. The engine uses geometric nonlinearities in the resonating ribbons to autonomously convert a random excitation into a low-entropy, nonpassive oscillation of the cantilever. The engine presents the anomalous heat transport property of negative thermal conductivity, consisting in the ability to passively transfer energy from a cold reservoir to a hot reservoir.

  14. Semi-Autonomous Vehicle Project

    Science.gov (United States)

    Stewart, Christopher

    2016-01-01

    The primary objective this summer is "evaluating standards for wireless architecture for the internet of things". The Internet of Things is the network of physical objects or "things" embedded with electronics, software, sensors and network connectivity which enables these objects to collect and exchange data and make decisions based on said data. This was accomplished by creating a semi-autonomous vehicle that takes advantage of multiple sensors, cameras, and onboard computers and combined them with a mesh network which enabled communication across large distances with little to no interruption. The mesh network took advantage of what is known as DTN - Disruption Tolerant Networking which according to NASA is the new communications protocol that is "the first step towards interplanetary internet." The use of DTN comes from the fact that it will store information if an interruption in communications is detected and even forward that information via other relays within range so that the data is not lost. This translates well into the project because as the car moves further away from whatever is sending it commands (in this case a joystick), the information can still be forwarded to the car with little to no loss of information thanks to the mesh nodes around the driving area.

  15. Autonomous gliding entry guidance with

    Directory of Open Access Journals (Sweden)

    Guo Jie

    2015-10-01

    Full Text Available This paper presents a novel three-dimensional autonomous entry guidance for relatively high lift-to-drag ratio vehicles satisfying geographic constraints and other path constraints. The guidance is composed of onboard trajectory planning and robust trajectory tracking. For trajectory planning, a longitudinal sub-planner is introduced to generate a feasible drag-versus-energy profile by using the interpolation between upper boundary and lower boundary of entry corridor to get the desired trajectory length. The associated magnitude of the bank angle can be specified by drag profile, while the sign of bank angle is determined by lateral sub-planner. Two-reverse mode is utilized to satisfy waypoint constraints and dynamic heading error corridor is utilized to satisfy no-fly zone constraints. The longitudinal and lateral sub-planners are iteratively employed until all of the path constraints are satisfied. For trajectory tracking, a novel tracking law based on the active disturbance rejection control is introduced. Finally, adaptability tests and Monte Carlo simulations of the entry guidance approach are performed. Results show that the proposed entry guidance approach can adapt to different entry missions and is able to make the vehicle reach the prescribed target point precisely in spite of geographic constraints.

  16. Autonomic dysregulation in headache patients.

    Science.gov (United States)

    Gass, Jason J; Glaros, Alan G

    2013-12-01

    To analyze autonomic nervous system activity in headache subjects, measurements of heart rate variability (HRV), skin temperature, skin conductance, and respiration were compared to a matched control group. HRV data were recorded in time and frequency domains. Subjects also completed self-report questionnaires assessing psychological distress, fatigue, and sleep dysfunction. Twenty-one headache and nineteen control subjects participated. In the time domain, the number of consecutive R-to-R intervals that varied by more than 50 ms and the standard deviation of the normalized R-to-R intervals, both indices of parasympathetic nervous system activity, were significantly lower in the headache group than the control group. Groups did not differ statistically on HRV measures in the frequency domain. Self-report measures showed significantly increased somatization, hostility, anxiety, symptom distress, fatigue, and sleep problems in the headache group. The results suggest headache subjects have increased sympathetic nervous system activity and decreased parasympathetic activity compared to non-headache control subjects. Headaches subjects also showed greater emotional distress, fatigue, and sleep problems. The results indicate an association between headaches and cardiovascular functioning suggestive of sympathetic nervous system activation in this sample of mixed migraine and tension-type headache sufferers. PMID:23912525

  17. Autonomous Systems Developments and Trends

    CERN Document Server

    Kyamaky, Kyandoghere; Kacprzyk, Janusz

    2012-01-01

    The Workshops on Autonomous Systems emanated from a gathering with the doctoral students of just three chairs at Fernuniversität in Hagen, which we organise twice per year for a number of years now. Their purpose is to discuss on-going research and to create a community spirit. Furthermore, they serve as a means of structuring the students' research processes. The workshop has grown and matured in several respects. The doctoral students presenting their work do not come from a single university anymore, but from three. Besides them and their supervisors, also other scientists became interested in the event and contribute to its programme. Following the model of Advanced Study Institutes, they are available on the premises for relaxed, informal discussions outside the formal sessions. Finally, with the co-sponsorship of Gesellschaft für Informatik, the German Computer Society, and this surprisingly comprehensive volume of contributions published by Springer-Verlag the workshop turned into a visible scientifi...

  18. Environmental data collection using autonomous Wave Gliders

    OpenAIRE

    Hermsdorfer, Kathryn M.

    2014-01-01

    Approved for public release; distribution is unlimited The Sensor Hosting Autonomous Remote Craft (SHARC), also known as Wave Glider, is an autonomous ocean vehicle powered by wave motion. This slow-moving platform makes long-term deployments and environmental data collection feasible, especially in data sparse regions or hazardous environments. The standard SHARC hosts a meteorological station (Airmar PB200) that samples air pressure, temperature, wind speed and wind direction at 1.12 m. ...

  19. A middleware architecture for autonomic software deployment

    OpenAIRE

    Matougui, Mohamed El Amine; LERICHE, Sébastien

    2012-01-01

    International audience Autonomic software deployment in open networked environments such as mobile and ad hoc networks is an open issue. Some solutions to software deployment exist; but, they are usable only within static topologies of devices. We propose a middleware architecture providing a constraint-based language guiding the deployment process at a high level and an autonomous agent-based system for establishing and maintaining a software deployment according to a deployment plan. Con...

  20. Tele-robotic/autonomous control using controlshell

    Energy Technology Data Exchange (ETDEWEB)

    Wilhelmsen, K.C.; Hurd, R.L.; Couture, S.

    1996-12-10

    A tele-robotic and autonomous controller architecture for waste handling and sorting has been developed which uses tele-robotics, autonomous grasping and image processing. As a starting point, prior work from LLNL and ORNL was restructured and ported to a special real-time development environment. Significant improvements in collision avoidance, force compliance, and shared control aspects were then developed. Several orders of magnitude improvement were made in some areas to meet the speed and robustness requirements of the application.

  1. Decentralized Coordination of Autonomous Vehicles at intersections

    OpenAIRE

    Makarem, Laleh; Gillet, Denis

    2011-01-01

    In this paper, the decentralized coordination of point-mass autonomous vehicles at intersections using navigation functions is considered. As main contribution, the inertia of the vehicles is taken into account to enable on-board energy optimization for crossing. In such a way, heavier vehicles that need more energy and time for acceleration or breaking are given an indirect priority at intersections. The proposed decentralized coordination scheme of autonomous vehicles at intersection is com...

  2. Omnidirectional Stereo Vision for Autonomous Vehicles

    OpenAIRE

    Schönbein, Miriam

    2014-01-01

    Environment perception with cameras is an important requirement for many applications for autonomous vehicles and robots. This work presents a stereoscopic omnidirectional camera system for autonomous vehicles which resolves the problem of a limited field of view and provides a 360° panoramic view of the environment. We present a new projection model for these cameras and show that the camera setup overcomes major drawbacks of traditional perspective cameras in many applications.

  3. Autonomous navigation and sign detector learning

    OpenAIRE

    Ellis, Liam; Pugeault, Nicolas; Öfjäll, Kristoffer; Hedborg, Johan; Bowden, Richard; Felsberg, Michael

    2013-01-01

    This paper presents an autonomous robotic system that incorporates novel Computer Vision, Machine Learning and Data Mining algorithms in order to learn to navigate and discover important visual entities. This is achieved within a Learning from Demonstration (LfD) framework, where policies are derived from example state-to-action mappings. For autonomous navigation, a mapping is learnt from holistic image features (GIST) onto control parameters using Random Forest regression. Additionally, vis...

  4. Autonomous Path Following Using Convolutional Networks

    OpenAIRE

    Schmiterlöw, Maria

    2012-01-01

    Autonomous vehicles have many application possibilities within many different fields like rescue missions, exploring foreign environments or unmanned vehicles etc. For such system to navigate in a safe manner, high requirements of reliability and security must be fulfilled. This master's thesis explores the possibility to use the machine learning algorithm convolutional network on a robotic platform for autonomous path following. The only input to predict the steering signal is a monochromati...

  5. Visual navigation for an autonomous mobile vehicle

    OpenAIRE

    Peterson, Kevin Robert

    1992-01-01

    Approved for public release; distribution is unlimited Image understanding for a mobile robotic vehicle is an important and complex task for ensuring safe navigation and extended autonomous operations. The goal of this work is to implement a working vision-based navigation control mechanism within a known environment onboard the autonomous mobile vehicle Yamabico-II. Although installing a working hardware system was not accomplished, the image processing, model description, pattern match...

  6. Control of the MARES Autonomous Underwater Vehicle

    OpenAIRE

    Bruno Ferreira; Miguel Pinto; Anibal Matos; Nuno Cruz

    2009-01-01

    This paper focuses the control problem of a nonholonomic autonomous underwater vehicle, moving in the tridimensional space. The dynamic of a body in submarine environments is strongly nonlinear. This implies that classical linear controllers are often inadequate whereby Lyapunov theory is here considered. Methods based in this theory are promising tools to design controllers and are applied to the case of MARES, a small-sized autonomous underwater vehicle. Several controllers based only on Ly...

  7. Autonomous vehicle development for vertical submarine observation

    OpenAIRE

    Gomáriz Castro, Spartacus; Prat Tasias, Jordi; Arbós, Alejandro; Viñolo Monzoncillo, Carlos; Pallares, Oriol

    2009-01-01

    This work proposes the development of an ocean observation vehicle. This vehicle, a hybrid between Autonomous Underwater Vehicles (AUV) and Autonomous Surface Vehicles (ASV) moves on the surface of the sea and makes vertical immersions to obtain the profiles of a water column according to a pre-established plan. Its design provides lower production cost and higher efficiency. GPS navigation allows the platform to move along the surface of the water while a radio-modem provid...

  8. Operations on Rigid Formations of Autonomous Agents

    OpenAIRE

    Eren, Tolga; Anderson, Brian D. O.; Morse, A. Stephen; Whiteley, Walter; Belhumeur, Peter N.

    2003-01-01

    This paper is concerned with the maintenance of rigid formations of mobile autonomous agents. A key element in all future multi-agent systems will be the role of sensor and communication networks as an integral part of coordination. Network topologies are critically important for autonomous systems involving mobile underwater, ground and air vehicles and for sensor networks. This paper focuses on developing techniques and strategies for the analysis and design of sensor a...

  9. TRIDENT: A Framework for Autonomous Underwater Intervention

    OpenAIRE

    Sanz Valero, Pedro José; Ridao, Pere; Oliver, Gabriel; Melchiorri, Claudio; Casalino, Giuseppe; Silvestre, Carlos; Petillot, Yvan; Turetta, Alessio

    2011-01-01

    TRIDENT is a STREP project recently approved by the European Commission whose proposal was submitted to the ICT call 4 of the 7th Framework Program. The project proposes a new methodology for multipurpose underwater intervention tasks. To that end, a cooperative team formed with an Autonomous Surface Craft and an Intervention Autonomous Underwater Vehicle will be used. The proposed methodology splits the mission in two stages mainly devoted to survey and intervention tasks, res...

  10. Advancing Autonomous Operations for Deep Space Vehicles

    Science.gov (United States)

    Haddock, Angie T.; Stetson, Howard K.

    2014-01-01

    Starting in Jan 2012, the Advanced Exploration Systems (AES) Autonomous Mission Operations (AMO) Project began to investigate the ability to create and execute "single button" crew initiated autonomous activities [1]. NASA Marshall Space Flight Center (MSFC) designed and built a fluid transfer hardware test-bed to use as a sub-system target for the investigations of intelligent procedures that would command and control a fluid transfer test-bed, would perform self-monitoring during fluid transfers, detect anomalies and faults, isolate the fault and recover the procedures function that was being executed, all without operator intervention. In addition to the development of intelligent procedures, the team is also exploring various methods for autonomous activity execution where a planned timeline of activities are executed autonomously and also the initial analysis of crew procedure development. This paper will detail the development of intelligent procedures for the NASA MSFC Autonomous Fluid Transfer System (AFTS) as well as the autonomous plan execution capabilities being investigated. Manned deep space missions, with extreme communication delays with Earth based assets, presents significant challenges for what the on-board procedure content will encompass as well as the planned execution of the procedures.

  11. Autonomous control systems - Architecture and fundamental issues

    Science.gov (United States)

    Antsaklis, P. J.; Passino, K. M.; Wang, S. J.

    1988-01-01

    A hierarchical functional autonomous controller architecture is introduced. In particular, the architecture for the control of future space vehicles is described in detail; it is designed to ensure the autonomous operation of the control system and it allows interaction with the pilot and crew/ground station, and the systems on board the autonomous vehicle. The fundamental issues in autonomous control system modeling and analysis are discussed. It is proposed to utilize a hybrid approach to modeling and analysis of autonomous systems. This will incorporate conventional control methods based on differential equations and techniques for the analysis of systems described with a symbolic formalism. In this way, the theory of conventional control can be fully utilized. It is stressed that autonomy is the design requirement and intelligent control methods appear at present, to offer some of the necessary tools to achieve autonomy. A conventional approach may evolve and replace some or all of the `intelligent' functions. It is shown that in addition to conventional controllers, the autonomous control system incorporates planning, learning, and FDI (fault detection and identification).

  12. Vigilancia de los factores de riesgo de las enfermedades no transmisibles mediante encuesta telefónica: resultados de la Comunidad de Madrid en el período 1995-2003 Risk factors surveillance for non-communicable disease through telephone survey: Results in the Autonomous Community of Madrid from 1995-2003

    Directory of Open Access Journals (Sweden)

    Iñaki Galán

    2005-06-01

    Full Text Available Objetivo: Ilustrar por primera vez con datos españoles la utilidad de la vigilancia por encuesta telefónica de los factores de riesgo de enfermedades no transmisibles para orientar las políticas de salud pública. Métodos: Se analiza la información del Sistema de Vigilancia de Factores de Riesgo asociados con Enfermedades No Transmisibles (SIVFRENT entre 1995 y 2003, basada en encuestas telefónicas mensuales y dirigida a la población de 18-64 años de la Comunidad de Madrid. Se realizaron 18.049 entrevistas durante todo el período. Se calculan los indicadores de sobrepeso y obesidad, sedentarismo, dieta, consumo de tabaco y alcohol, prácticas preventivas, accidentabilidad y seguridad vial. La tendencia se estima a través del promedio anual de las razones de prevalencia obtenidas mediante modelos lineales generalizados con vínculo logarítmico y familia binomial. Resultados: Los mayores cambios en los varones corresponden al incremento del sobrepeso y la obesidad, con un aumento relativo del 3,7% anual, y al descenso de la realización de dietas (-3%, del consumo elevado de alcohol (-6,1% y de la no utilización del cinturón de seguridad (-4%. En las mujeres se incrementan el sobrepeso y la obesidad (3,3%, el abandono del consumo de tabaco (3,1% y la realización de mamografías (6,4%, y disminuye la realización de dietas (-4,1% y la no utilización del cinturón de seguridad (-4,5%. Conclusiones: Se observan importantes progresos en numerosos indicadores, como el consumo de tabaco y alcohol, la seguridad vial y la realización de prácticas preventivas, mientras que en otros la situación empeora, fundamentalmente el incremento del sobrepeso y la obesidad.Objective: To illustrate -for the first time with Spanish data- the usefulness of telephone-interview-based surveillance of non-communicable diseases risk factors for the purpose of drawing up public health policies. Methods: We analysed information from the Non

  13. Improved autonomous star identification algorithm

    Science.gov (United States)

    Luo, Li-Yan; Xu, Lu-Ping; Zhang, Hua; Sun, Jing-Rong

    2015-06-01

    The log-polar transform (LPT) is introduced into the star identification because of its rotation invariance. An improved autonomous star identification algorithm is proposed in this paper to avoid the circular shift of the feature vector and to reduce the time consumed in the star identification algorithm using LPT. In the proposed algorithm, the star pattern of the same navigation star remains unchanged when the stellar image is rotated, which makes it able to reduce the star identification time. The logarithmic values of the plane distances between the navigation and its neighbor stars are adopted to structure the feature vector of the navigation star, which enhances the robustness of star identification. In addition, some efforts are made to make it able to find the identification result with fewer comparisons, instead of searching the whole feature database. The simulation results demonstrate that the proposed algorithm can effectively accelerate the star identification. Moreover, the recognition rate and robustness by the proposed algorithm are better than those by the LPT algorithm and the modified grid algorithm. Project supported by the National Natural Science Foundation of China (Grant Nos. 61172138 and 61401340), the Open Research Fund of the Academy of Satellite Application, China (Grant No. 2014_CXJJ-DH_12), the Fundamental Research Funds for the Central Universities, China (Grant Nos. JB141303 and 201413B), the Natural Science Basic Research Plan in Shaanxi Province, China (Grant No. 2013JQ8040), the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20130203120004), and the Xi’an Science and Technology Plan, China (Grant. No CXY1350(4)).

  14. Compact Autonomous Hemispheric Vision System

    Science.gov (United States)

    Pingree, Paula J.; Cunningham, Thomas J.; Werne, Thomas A.; Eastwood, Michael L.; Walch, Marc J.; Staehle, Robert L.

    2012-01-01

    Solar System Exploration camera implementations to date have involved either single cameras with wide field-of-view (FOV) and consequently coarser spatial resolution, cameras on a movable mast, or single cameras necessitating rotation of the host vehicle to afford visibility outside a relatively narrow FOV. These cameras require detailed commanding from the ground or separate onboard computers to operate properly, and are incapable of making decisions based on image content that control pointing and downlink strategy. For color, a filter wheel having selectable positions was often added, which added moving parts, size, mass, power, and reduced reliability. A system was developed based on a general-purpose miniature visible-light camera using advanced CMOS (complementary metal oxide semiconductor) imager technology. The baseline camera has a 92 FOV and six cameras are arranged in an angled-up carousel fashion, with FOV overlaps such that the system has a 360 FOV (azimuth). A seventh camera, also with a FOV of 92 , is installed normal to the plane of the other 6 cameras giving the system a > 90 FOV in elevation and completing the hemispheric vision system. A central unit houses the common electronics box (CEB) controlling the system (power conversion, data processing, memory, and control software). Stereo is achieved by adding a second system on a baseline, and color is achieved by stacking two more systems (for a total of three, each system equipped with its own filter.) Two connectors on the bottom of the CEB provide a connection to a carrier (rover, spacecraft, balloon, etc.) for telemetry, commands, and power. This system has no moving parts. The system's onboard software (SW) supports autonomous operations such as pattern recognition and tracking.

  15. Autonomous and autonomic systems with applications to NASA intelligent spacecraft operations and exploration systems

    CERN Document Server

    Truszkowski, Walt; Rouff, Christopher; Karlin, Jay; Rash, James; Hinchey, Michael; Sterritt, Roy

    2009-01-01

    This book provides an in-depth discussion of autonomous and autonomic systems, their interdependencies, differences and similarities. Current and pending issues in these evermore increasingly important subjects are highlighted and discussed. Concepts, ideas and experiences are explored in relation to real-life NASA systems in spacecraft control and in the exploration domain.

  16. Supervised autonomous robotic soft tissue surgery.

    Science.gov (United States)

    Shademan, Azad; Decker, Ryan S; Opfermann, Justin D; Leonard, Simon; Krieger, Axel; Kim, Peter C W

    2016-05-01

    The current paradigm of robot-assisted surgeries (RASs) depends entirely on an individual surgeon's manual capability. Autonomous robotic surgery-removing the surgeon's hands-promises enhanced efficacy, safety, and improved access to optimized surgical techniques. Surgeries involving soft tissue have not been performed autonomously because of technological limitations, including lack of vision systems that can distinguish and track the target tissues in dynamic surgical environments and lack of intelligent algorithms that can execute complex surgical tasks. We demonstrate in vivo supervised autonomous soft tissue surgery in an open surgical setting, enabled by a plenoptic three-dimensional and near-infrared fluorescent (NIRF) imaging system and an autonomous suturing algorithm. Inspired by the best human surgical practices, a computer program generates a plan to complete complex surgical tasks on deformable soft tissue, such as suturing and intestinal anastomosis. We compared metrics of anastomosis-including the consistency of suturing informed by the average suture spacing, the pressure at which the anastomosis leaked, the number of mistakes that required removing the needle from the tissue, completion time, and lumen reduction in intestinal anastomoses-between our supervised autonomous system, manual laparoscopic surgery, and clinically used RAS approaches. Despite dynamic scene changes and tissue movement during surgery, we demonstrate that the outcome of supervised autonomous procedures is superior to surgery performed by expert surgeons and RAS techniques in ex vivo porcine tissues and in living pigs. These results demonstrate the potential for autonomous robots to improve the efficacy, consistency, functional outcome, and accessibility of surgical techniques. PMID:27147588

  17. Las TIC en las Aulas Hospitalarias

    OpenAIRE

    Prendes Espinosa, Mª Paz; Serrano Sánchez, José Luis

    2012-01-01

    Libro en el cual se recoge un análisis de la experiencia del proyecto ALTER en las Aulas Hospitalarias de la Región de Murcia (desarrollado con financiación de la Fundación Séneca de la Región de Murcia). Además se completa con otras experiencias que se desarrollan en este mismo contexto de las Aulas Hospitalarias y todo ello desde el contexto teórico de la Pedagogía Hospitalaria.

  18. La autonomía de Catalunya en la prensa argentina

    OpenAIRE

    Elguezabal, Paula

    2007-01-01

    Este trabajo se propone hacer un análisis de las noticias de dos diarios de tirada nacional en Argentina -Clarín y La Nación-, en los ejemplares que abarcan el período junio 2005-junio de 2006, sobre el tratamiento de dichos medios gráficos del tema de la autonomía de Catalunya. Para ello, se buscará desentrañar la Intencionalidad Editorial detrás de los procesos periodísticos referidos a Catalunya, su fenómeno del nacionalismo y su lucha por la autonomía. La parcialidad siempre presente en l...

  19. Autonomous Learning and Improving Communicative Competence

    Institute of Scientific and Technical Information of China (English)

    李宝红; 孙晓黎

    2013-01-01

    Nowadays, English as a world language becomes more and more important. Consequently, English learning becomes more and more popular. As we know, an important object for English learners is to improve their communicative competence. So autonomous learning is a good way to improve communicative competence. In this paper, two terms, autonomous learning and communicative competence, and their relationship will be introduced from the perspective of English learning. Autonomous learning is self-managed learning, which is contrary to passive learning and mechanical learning, according to intrinsic property of language learning. Communicative competence is a concept introduced by Dell Hymes and is discussed and refined by many oth⁃er linguists. According to Hymes, communicative competence is the ability not only to apply the grammatical rules of language in order to form grammatically correct sentences but also to know when and where to use these sentences and to whom. Communi⁃cative competence includes 4 aspects: Possibility, feasibility, appropriateness and performance. Improving communicative compe⁃tence is the result of autonomous learning, autonomous learning is the motivation of improving communicative competence. English, of course, is a bridge connecting China to the world, and fostering students’communicative competence through auton⁃omous learning is the vital element of improving English learning in China.

  20. Haciendo resonar las voces

    DEFF Research Database (Denmark)

    Tufte, Thomas; Corrigan, Arran; Ekstrøm, Ylva;

    2011-01-01

    sexualidad protegida y el VIH/SIDA”. FEMINA persigue sus objetivos por medio de la producción de dos de las revistas de mayor circulación en Tanzania: SiMchezo! y Fema, apuntando a la juventud rural y urbana mediante una estrategia de intervención comunicacional multimedia y participativa. Las dos revistas...

  1. Violencia contra las mujeres

    OpenAIRE

    Di Ciaccia, Antonio

    2016-01-01

    A partir de considerar las paradojas del orden simbólico, este texto aborda la violencia contra las mujeres, pero no solamente como un dato de estructura, y resitúa esa violencia en conexión con el llamado por Freud “rechazo a la femineidad”.

  2. Autonomous driving technical, legal and social aspects

    CERN Document Server

    Gerdes, J; Lenz, Barbara; Winner, Hermann

    2016-01-01

    This book takes a look at fully automated, autonomous vehicles and discusses many open questions: How can autonomous vehicles be integrated into the current transportation system with diverse users and human drivers? Where do automated vehicles fall under current legal frameworks? What risks are associated with automation and how will society respond to these risks? How will the marketplace react to automated vehicles and what changes may be necessary for companies? Experts from Germany and the United States define key societal, engineering, and mobility issues related to the automation of vehicles. They discuss the decisions programmers of automated vehicles must make to enable vehicles to perceive their environment, interact with other road users, and choose actions that may have ethical consequences. The authors further identify expectations and concerns that will form the basis for individual and societal acceptance of autonomous driving. While the safety benefits of such vehicles are tremendous, the auth...

  3. Blood pressure regulation in diabetic autonomic neuropathy

    DEFF Research Database (Denmark)

    Hilsted, J

    1985-01-01

    Defective blood pressure responses to standing, exercise and epinephrine infusions have been demonstrated in diabetic patients with autonomic neuropathy. The circulatory mechanisms underlying blood pressure responses to exercise and standing up in these patients are well characterized: In both...... which may contribute to exercise hypotension in these patients. During hypoglycemia, blood pressure regulation seems intact in patients with autonomic neuropathy. This is probably due to release of substantial amounts of catecholamines during these experiments. During epinephrine infusions a substantial...... blood pressure fall ensues in patients with autonomic neuropathy, probably due to excessive muscular vasodilation. It is unresolved why blood pressure regulation is intact during hypoglycemia and severely impaired--at similar catecholamine concentrations--during epinephrine infusions....

  4. An Autonomous Reference Frame for Relativistic GNSS

    CERN Document Server

    Kostić, Uroš; Carloni, Sante; Delva, Pacôme; Gomboc, Andreja

    2014-01-01

    Current GNSS systems rely on global reference frames which are fixed to the Earth (via the ground stations) so their precision and stability in time are limited by our knowledge of the Earth dynamics. These drawbacks could be avoided by giving to the constellation of satellites the possibility of constituting by itself a primary and autonomous positioning system, without any a priori realization of a terrestrial reference frame. Our work shows that it is possible to construct such a system, an Autonomous Basis of Coordinates, via emission coordinates. Here we present the idea of the Autonomous Basis of Coordinates and its implementation in the perturbed space-time of Earth, where the motion of satellites, light propagation, and gravitational perturbations are treated in the formalism of general relativity.

  5. Autonomous Robot Navigation based on Visual Landmarks

    DEFF Research Database (Denmark)

    Livatino, Salvatore

    2005-01-01

    autonomous navigation and self-localization using automatically selected landmarks. The thesis investigates autonomous robot navigation and proposes a new method which benefits from the potential of the visual sensor to provide accuracy and reliability to the navigation process while relying on naturally...... update of the estimated robot position while the robot is moving. In order to make the system autonomous, both acquisition and observation of landmarks have to be carried out automatically. The thesis consequently proposes a method for learning and navigation of a working environment and it explores......The use of landmarks for robot navigation is a popular alternative to having a geometrical model of the environment through which to navigate and monitor self-localization. If the landmarks are defined as special visual structures already in the environment then we have the possibility of fully...

  6. Elements of Autonomous Self-Reconfigurable Robots

    DEFF Research Database (Denmark)

    Christensen, David Johan

    In this thesis, we study several central elements of autonomous self-reconfigurable modular robots. Unlike conventional robots such robots are: i) Modular, since robots are assembled from numerous robotic modules. ii) Reconfigurable, since the modules can be combined in a variety of ways. iii) Self......-reconfigurable, since the modules themselves are able to change how they are combined. iv) Autonomous, since robots control themselves without human guidance. Such robots are attractive to study since they in theory have several desirable characteristics, such as versatility, reliability and cheapness. In practice...... however, it is challenging to realize such characteristics since state-of-the-art systems and solutions suffer from several inherent technical and theoretical problems and limitations. In this thesis, we address these challenges by exploring four central elements of autonomous self-reconfigurable modular...

  7. Autonomous forward inference via DNA computing

    Institute of Scientific and Technical Information of China (English)

    Fu Yan; Li Gen; Li Yin; Meng Dazhi

    2007-01-01

    Recent studies direct the researchers into building DNA computing machines with intelligence, which is measured by three main points: autonomous, programmable and able to learn and adapt. Logical inference plays an important role in programmable information processing or computing. Here we present a new method to perform autonomous molecular forward inference for expert system.A novel repetitive recognition site (RRS) technique is invented to design rule-molecules in knowledge base. The inference engine runs autonomously by digesting the rule-molecule, using a Class ⅡB restriction enzyme PpiⅠ. Concentration model has been built to show the feasibility of the inference process under ideal chemical reaction conditions. Moreover, we extend to implement a triggering communication between molecular automata, as a further application of the RRS technique in our model.

  8. Procesos de planificación en matemáticas y autonomía escolar

    OpenAIRE

    Gómez, Pedro; Restrepo, Ángela M.

    2012-01-01

    La autonomía escolar se estableció en Colombia en 1994, con la intención de que las instituciones educativas adaptaran el currículo a su contexto. Como consecuencia, instituciones y profesores se hicieron responsables del diseño curricular en todas las áreas, con la guía de lineamientos curriculares publicados por el gobierno. En este trabajo indagamos sobre los procesos de planificación en matemáticas en una muestra de conveniencia de instituciones educativas colombianas. Con base en un marc...

  9. Planes de área en matemáticas y autonomía escolar: un estudio de casos

    OpenAIRE

    Restrepo, Ángela M.; Gómez, Pedro

    2011-01-01

    AUTONOMÍA ESCOLAR Y PLANIFICACIÓN EN MATEMÁTICAS La autonomía escolar se estableció en Colombia en 1994, con la intención de que las instituciones educativas adaptaran el currículo a su contexto. Como consecuencia, instituciones y profesores se hicieron responsables del diseño curricular en todas las áreas, con la guía de lineamientos curriculares publicados por el gobierno. Estos diseños curriculares que se plasman en el plan de área. En este trabajo caracterizamos los planes de área...

  10. Autonomous operations through onboard artificial intelligence

    Science.gov (United States)

    Sherwood, R. L.; Chien, S.; Castano, R.; Rabideau, G.

    2002-01-01

    The Autonomous Sciencecraft Experiment (ASE) will fly onboard the Air Force TechSat 21 constellation of three spacecraft scheduled for launch in 2006. ASE uses onboard continuous planning, robust task and goal-based execution, model-based mode identification and reconfiguration, and onboard machine learning and pattern recognition to radically increase science return by enabling intelligent downlink selection and autonomous retargeting. Demonstration of these capabilities in a flight environment will open up tremendous new opportunities in planetary science, space physics, and earth science that would be unreachable without this technology.

  11. Advanced control architecture for autonomous vehicles

    Science.gov (United States)

    Maurer, Markus; Dickmanns, Ernst D.

    1997-06-01

    An advanced control architecture for autonomous vehicles is presented. The hierarchical architecture consists of four levels: a vehicle level, a control level, a rule-based level and a knowledge-based level. A special focus is on forms of internal representation, which have to be chosen adequately for each level. The control scheme is applied to VaMP, a Mercedes passenger car which autonomously performs missions on German freeways. VaMP perceives the environment with its sense of vision and conventional sensors. It controls its actuators for locomotion and attention focusing. Modules for perception, cognition and action are discussed.

  12. Connecting orbits of autonomous Lagrangian systems

    International Nuclear Information System (INIS)

    In contrast to the time-dependent case, the time-t-section of Mañé set of autonomous Lagrangian systems is independent of time, thus, it is nowhere disconnected. This causes some difference in the study of dynamics, for instance, Mather's c-equivalence cannot exist among different cohomology classes if they are not in a flat of the α-function (cf (Bernard 2002 Ann. Inst. Fourier 52 1533–68.)). In this paper, we show how to construct connecting orbits in autonomous systems, and propose a modified notion of c-equivalence. We also apply the result to construct diffusion orbits in an energy surface

  13. Dynamic biomaterials: toward engineering autonomous feedback.

    Science.gov (United States)

    Morris, Eliza; Chavez, Michael; Tan, Cheemeng

    2016-06-01

    Dynamic biomaterials are biocompatible engineered systems capable of sensing and actively responding to their surrounding environment. They are of growing interest, both as models in basic research to understand complex cellular systems and in medical applications. Here, we review recent advances in nano-scale and micro-scale biomaterials, specifically artificial cells consisting of compartmentalized biochemical reactions and biologically compatible hydrogels. These dynamic biomaterials respond to stimuli through triggered reactions, reaction cascades, logic gates, and autonomous feedback loops. We outline the advances and remaining challenges in implementing such 'smart' biomaterials capable of autonomously responding to environmental stimuli. PMID:26974245

  14. Blunted autonomic response in cluster headache patients

    DEFF Research Database (Denmark)

    Barloese, Mads; Brinth, Louise; Mehlsen, Jesper;

    2015-01-01

    BACKGROUND: Cluster headache (CH) is a disabling headache disorder with chronobiological features. The posterior hypothalamus is involved in CH pathophysiology and is a hub for autonomic control. We studied autonomic response to the head-up tilt table test (HUT) including heart rate variability...... (HRV) in CH patients and compared results to healthy controls. METHODS AND MATERIALS: Twenty-seven episodic and chronic CH patients and an equal number of age-, sex- and BMI-matched controls were included. We analyzed responses to HUT in the time and frequency domain and by non-linear analysis. RESULTS...

  15. Light Sailboats: Laser driven autonomous microrobots

    CERN Document Server

    Búzás, Anrdás; Mathesz, Anna; Oroszi, László; Vizsnyiczai, Gaszton; Vicsek, Tamás; Ormos, Pál; 10.1063/1.4737646

    2012-01-01

    We introduce a system of light driven microscopic autonomous moving particles that move on a flat surface. The design is simple, yet effective: Micrometer sized objects with wedge shape are produced by photopolymerization, they are covered with a reflective surface. When the area of motion is illuminated perpendicularly from above, the light is deflected to the side by the wedge shaped objects, in the direction determined by the position and orientation of the particles. The momentum change during reflection provides the driving force for an effectively autonomous motion. The system is an efficient tool to study self propelled microscopic robots.

  16. Reflex control for safe autonomous robot operation

    International Nuclear Information System (INIS)

    This paper describes the design of an autonomous, sonar-based world mapping system for collision prevention in robotic systems. Obstacle detection and mapping is performed as a task that competes with higher-level tasks for the robot's attention. All tasks are integrated within a hierarchy, organized and co-ordinated by schemes analogous to biological reflexes and fixed action patterns. It is illustrated how the existence of low-level reflex behaviours can enhance the survivability and autonomy of complex systems and simplify the design of complex higher-level controls like our autonomous sonar-based world mapping system

  17. Design of an autonomous exterior security robot

    Science.gov (United States)

    Myers, Scott D.

    1994-01-01

    This paper discusses the requirements and preliminary design of robotic vehicle designed for performing autonomous exterior perimeter security patrols around warehouse areas, ammunition supply depots, and industrial parks for the U.S. Department of Defense. The preliminary design allows for the operation of up to eight vehicles in a six kilometer by six kilometer zone with autonomous navigation and obstacle avoidance. In addition to detection of crawling intruders at 100 meters, the system must perform real-time inventory checking and database comparisons using a microwave tags system.

  18. Autonomous control of multi-fingered hand

    Institute of Scientific and Technical Information of China (English)

    JIANG Li; LIU Hong

    2006-01-01

    This paper describes a novel autonomous control strategy of multi-fingered hand based on a modular control system of dexterous manipulation. A simple proportional-integral-derivative(PID) position control with friction compensation, which requires few friction parameters, is used to realize accurate and smooth trajectory tracking in pregrasp phase. In grasp and manipulation phases, an event-driven switcher is adopted to determine the switching between unconstrained position control and constrained torque control, and an improved explicit integral force control strategy is implemented to realize simultaneously stable contact transition and accurate force tracking. Experimental results have verified the effectiveness of the proposed autonomous control strategy of multi-fingered hand.

  19. Evolutionary strategy for achieving autonomous navigation

    Science.gov (United States)

    Gage, Douglas W.

    1999-01-01

    An approach is presented for the evolutionary development of supervised autonomous navigation capabilities for small 'backpackable' ground robots, in the context of a DARPA- sponsored program to provide robotic support to small units of dismounted warfighters. This development approach relies on the implementation of a baseline visual serving navigation capability, including tools to support operator oversight and override, which is then enhanced with semantically referenced commands and a mission scripting structure. As current and future machine perception techniques are able to automatically designate visual serving goal points, this approach should provide a natural evolutionary pathway to higher levels of autonomous operation and reduced requirements for operator intervention.

  20. Emerging Technologies for Autonomous Language Learning

    Directory of Open Access Journals (Sweden)

    Mark Warschauer

    2011-09-01

    Full Text Available Drawing on a lengthier review completed for the US National Institute for Literacy, this paper examines emerging technologies that are applicable to self-access and autonomous learning in the areas of listening and speaking, collaborative writing, reading and language structure, and online interaction. Digital media reviewed include podcasts, blogs, wikis, online writing sites, text-scaffolding software, concordancers, multiuser virtual environments, multiplayer games, and chatbots. For each of these technologies, we summarize recent research and discuss possible uses for autonomous language learning.

  1. Advances in autonomous systems for space exploration missions

    Science.gov (United States)

    Smith, B. D.; Gross, A. R.; Clancy, D. J.; Cannon, H. N.; Barrett, A.; Mjolssness, E.; Muscettola, N.; Chien, S.; Johnson, A.

    2001-01-01

    This paper focuses on new and innovative software for remote, autonomous, space systems flight operation, including distributed autonomous systems, flight test results, and implications and directions for future systems.

  2. Hard-real-time resource management for autonomous spacecraft

    Science.gov (United States)

    Gat, E.

    2000-01-01

    This paper describes tickets, a computational mechanism for hard-real-time autonomous resource management. Autonomous spacecraftcontrol can be considered abstractly as a computational process whose outputs are spacecraft commands.

  3. Navigation of autonomous underwater vehicle using extended kalman filter

    Digital Repository Service at National Institute of Oceanography (India)

    Ranjan, T.N.; Nherakkol, A.; Navelkar, G.S.

    To navigate the Autonomous Underwater Vehicle (AUV) accurately is one of the most important aspects in its application. A truly autonomous vehicle must determine its position which requires the optimal integration of all available attitude...

  4. A Rare Association of Trigeminal Autonomic Cephalgia: Pontine Capillary Telangiectasia

    OpenAIRE

    Gocmen, Rahsan; Kurt, Erdal; Arslan, Sabina; Unal-Cevik, Isin; Karli Oguz, Kader; Tezer, F Irsel

    2015-01-01

    This report describes a case of pontine capillary telangiectasia in a 43-year-old woman with a clinical diagnosis of trigeminal autonomic cephalgia. The possible association with pontine capillary telangiectasia and trigeminal autonomic cephalgia is discussed.

  5. El redimensionamiento de la autonomía y el regreso del recurso asistencial

    OpenAIRE

    Gentile, Micaela

    2014-01-01

    En la última década del siglo XXI, América Latina ha sido objeto de profundas transformaciones a partir de la asunción de gobiernos populares con claros objetivos de inclusión social. En este contexto, la ampliación de la autonomía estatal ha sido clave para la implementación de políticas económicas y sociales que han basado sus fundamentos en el derecho de los pueblos a los recursos generados por sus propias naciones. En el caso de la Argentina, las políticas sociales implementadas por la Ad...

  6. Retos en la gobernanza de las universidades españolas

    Directory of Open Access Journals (Sweden)

    Joaquín Gairin,

    2013-01-01

    Full Text Available El artículo profundiza sobre los retos a los que se enfrenta el sistema de gobernanza universitaria en España centrándose en tres aspectos básicos: la Autonomía institucional, la Participación en el gobierno y la Rendición de cuentas. El análisis considera aspectos documentales y un estudio de campo con veintitrés entrevistas. La autonomía se relaciona con la capacidad para tomar y desarrollar las propias decisiones, planteando los problemas ligados a su extensión, desarrollo y control, sin obviar las contradicciones existentes entre la autonomía institucional y la autonomía personal. La participación enlaza con la tradición y se refuerza con el desarrollo democrático de las sociedades, si bien plantea los dilemas de representatividad-rapidez y de número de participantes-responsables en la toma de decisiones. Por último, los retos de la rendición de cuentas tienen que ver con el establecimiento de indicadores y los efectos de la misma.

  7. Geometric integration of non-autonomous Hamiltonian problems

    OpenAIRE

    Marthinsen, Håkon; Owren, Brynjulf

    2014-01-01

    Symplectic integration of autonomous Hamiltonian systems is a well-known field of study in geometric numerical integration, but for non-autonomous systems the situation is less clear, since symplectic structure requires an even number of dimensions. We show that one possible extension of symplectic methods in the autonomous setting to the non-autonomous setting is obtained by using canonical transformations. Many existing methods fit into this framework. We also perform experiments which indi...

  8. Engineering an Ontology for Autonomous Systems - The OASys Ontology

    OpenAIRE

    Bermejo Alonso, Julita; Sanz Bravo, Ricardo; Rodríguez, Manuel; Hernández Corbato, Carlos

    2011-01-01

    This paper describes the development of an ontology for autonomous systems, as the initial stage of a research programe on autonomous systems’ engineering within a model-based control approach. The ontology aims at providing a unified conceptual framework for the autonomous systems’ stakeholders, from developers to software engineers. The modular ontology contains both generic and domain-specific concepts for autonomous systems description and engineering. The ontology serves as the basis in a ...

  9. A programming model and execution environment for autonomous systems

    OpenAIRE

    Razafimahefa, Chrislain

    2004-01-01

    This thesis presents the design and implementation of a programming model for autonomous systems. Autonomous systems are distributed systems based on wireless networks, mobile devices and the Internet. They are characterized by the high dynamics with which their configuration evolves. Ad hoc networks, a member of autonomous systems, illustrate this point since in these networks participants can join and leave at any time. Similarly in Peer-to-Peer networks, another member of autonomous system...

  10. College English Students’ Autonomous Learning Motivation and Cultivation Model Research

    Institute of Scientific and Technical Information of China (English)

    王艳荣; 李娥

    2015-01-01

    Studying the autonomous learning motivation and excitation model can stimulate intrinsic motivation of foreign language learners,develop students self-management strategy evaluation are very necessary.The purpose of this paper is to give students the skills of listening and speaking for their autonomous learning.Then study the cultivation and motivation of college English students autonomous learning,hoping to make students to learn autonomous learning and stimulate their motivation fully.

  11. Reconfigurability Analysis Method for Spacecraft Autonomous Control

    OpenAIRE

    Dayi Wang; Chengrui Liu

    2014-01-01

    As a critical requirement for spacecraft autonomous control, reconfigurability should be considered in design stage of spacecrafts by involving effective reconfigurability analysis method in guiding system designs. In this paper, a novel reconfigurability analysis method is proposed for spacecraft design. First, some basic definitions regarding spacecraft reconfigurability are given. Then, based on function tree theory, a reconfigurability modeling approach is established to properly describe...

  12. The CASCADAS Framework for Autonomic Communications

    Science.gov (United States)

    Baresi, Luciano; Ferdinando, Antonio Di; Manzalini, Antonio; Zambonelli, Franco

    An interesting approach to the design and development of the future Internet foresees a networked service eco-system capable of seamlessly offering services for human-to-human, human-to-machine and machine-to-machine interactions. This chapter builds in this direction by describing a distributed component-ware framework for autonomic and situation-aware communication developed within the CASCADAS project. The core of this framework is the Autonomic Communication Element (ACE), an innovative software abstraction capable of providing dynamically adaptable services that can be built, composed, and let evolve according to autonomic principles. Services are capable of adapting their logic to the dynamically changing context they operate in without human intervention. As a result, whenever the need arises, ACEs can be federated autonomously and produce new services on a situation-aware basis. Systems and, in particular, eco-systems can thus be conceived as collections of ACEs. The chapter introduces the concept of ACE and its different facets. It also presents the architecture of a prototype ACE-based platform and exemplifies the different concepts through a future Pervasive Behavioral Advertisement scenario.

  13. Information Engineering in Autonomous Robot Software

    NARCIS (Netherlands)

    Ziafati, P.

    2015-01-01

    In order to engage and help in our daily life, autonomous robots are to operate in dynamic and unstructured environments and interact with people. As the robot's environment and its behaviour are getting more complex, so are the robot's software and the knowledge that the robot needs to carry out it

  14. Autonomous operation of distributed storages in microgrids

    DEFF Research Database (Denmark)

    Loh, Poh Chiang; Chai, Yi Kai; Li, Ding; Blaabjerg, Frede

    2014-01-01

    Operation of distributed generators in microgrids has been widely discussed, but would not be fully autonomous if distributed energy storages are not considered. Storages are important since they provide energy buffering to load changes, energy levelling to source variations and ride-through enha......Operation of distributed generators in microgrids has been widely discussed, but would not be fully autonomous if distributed energy storages are not considered. Storages are important since they provide energy buffering to load changes, energy levelling to source variations and ride......-through enhancement to the microgrids. Recognising their importance, this study presents a scheme for sharing power among multiple distributed storages in coordination with the distributed sources and loads. The scheme prompts the storages to autonomously sense for local operating conditions, requesting for maximum...... to help with meeting the extra load demand. The described process takes place autonomously with energy eventually shared among the storages in proportion to their ratings. To test the concepts discussed, experiments have been performed with favourable results obtained for performance verification....

  15. Integrating the autonomous subsystems management process

    Science.gov (United States)

    Ashworth, Barry R.

    1992-01-01

    Ways in which the ranking of the Space Station Module Power Management and Distribution testbed may be achieved and an individual subsystem's internal priorities may be managed within the complete system are examined. The application of these results in the integration and performance leveling of the autonomously managed system is discussed.

  16. Autonomous Robot Navigation In Public Nature Park

    DEFF Research Database (Denmark)

    Andersen, Jens Christian; Andersen, Nils Axel; Ravn, Ole; Blas, Morten Rufus

    2005-01-01

    This extended abstract describes a project to make a robot travel autonomously across a public nature park. The challenge is to detect and follow the right path across junctions and open squares avoiding people and obstacles. The robot is equipped with a laser scanner, a (low accuracy) GPS, wheel...

  17. Autonomous biomorphic robots as platforms for sensors

    International Nuclear Information System (INIS)

    The idea of building autonomous robots that can carry out complex and nonrepetitive tasks is an old one, so far unrealized in any meaningful hardware. Tilden has shown recently that there are simple, processor-free solutions to building autonomous mobile machines that continuously adapt to unknown and hostile environments, are designed primarily to survive, and are extremely resistant to damage. These devices use smart mechanics and simple (low component count) electronic neuron control structures having the functionality of biological organisms from simple invertebrates to sophisticated members of the insect and crab family. These devices are paradigms for the development of autonomous machines that can carry out directed goals. The machine then becomes a robust survivalist platform that can carry sensors or instruments. These autonomous roving machines, now in an early stage of development (several proof-of-concept prototype walkers have been built), can be developed so that they are inexpensive, robust, and versatile carriers for a variety of instrument packages. Applications are immediate and many, in areas as diverse as prosthetics, medicine, space, construction, nanoscience, defense, remote sensing, environmental cleanup, and biotechnology

  18. A Multifunctional Coating for Autonomous Corrosion Control

    Science.gov (United States)

    Calle, Luz M.; Li, Wenyan; Buhrow, Jerry W.; Jolley, Scott t.

    2011-01-01

    Nearly all metals and their alloys are subject to corrosion that causes them to lose their structural integrity or other critical functionality. Protective coatings are the most commonly used method of corrosion control. However, progressively stricter environmental regulations have resulted in the ban of many commercially available corrosion protective coatings due to the harmful effects of their solvents or corrosion inhibitors. This work concerns the development of a multifunctional smart coating for the autonomous control of corrosion. This coating is being developed to have the inherent ability to detect the chemical changes associated with the onset of corrosion and respond autonomously to indicate it and control it. The multi-functionality of the coating is based on microencapsulation technology specifically designed for corrosion control applications. This design has, in addition to all the advantages of existing microcapsulation designs, the corrosion controlled release function that triggers the delivery of corrosion indicators and inhibitors on demand, only when and where needed. Microencapsulation of self-healing agents for autonomous repair of mechanical damage to the coating is also being pursued. Corrosion indicators, corrosion inhibitors, as well as self-healing agents, have been encapsulated and dispersed into several paint systems to test the corrosion detection, inhibition, and self-healing properties of the coating. Key words: Corrosion, coating, autonomous corrosion control, corrosion indication, corrosion inhibition, self-healing coating, smart coating, multifunctional coating, microencapsulation.

  19. Distributed formation control for autonomous robots

    NARCIS (Netherlands)

    Garcia de Marina Peinado, Hector Jesús

    2016-01-01

    This thesis addresses several theoretical and practical problems related to formation-control of autonomous robots. Formation-control aims to simultaneously accomplish the tasks of forming a desired shape by the robots and controlling their coordinated collective motion. This kind of robot performan

  20. Control algorithms for autonomous robot navigation

    International Nuclear Information System (INIS)

    This paper examines control algorithm requirements for autonomous robot navigation outside laboratory environments. Three aspects of navigation are considered: navigation control in explored terrain, environment interactions with robot sensors, and navigation control in unanticipated situations. Major navigation methods are presented and relevance of traditional human learning theory is discussed. A new navigation technique linking graph theory and incidental learning is introduced

  1. Autonomous biomorphic robots as platforms for sensors

    Energy Technology Data Exchange (ETDEWEB)

    Tilden, M.; Hasslacher, B.; Mainieri, R.; Moses, J.

    1996-10-01

    The idea of building autonomous robots that can carry out complex and nonrepetitive tasks is an old one, so far unrealized in any meaningful hardware. Tilden has shown recently that there are simple, processor-free solutions to building autonomous mobile machines that continuously adapt to unknown and hostile environments, are designed primarily to survive, and are extremely resistant to damage. These devices use smart mechanics and simple (low component count) electronic neuron control structures having the functionality of biological organisms from simple invertebrates to sophisticated members of the insect and crab family. These devices are paradigms for the development of autonomous machines that can carry out directed goals. The machine then becomes a robust survivalist platform that can carry sensors or instruments. These autonomous roving machines, now in an early stage of development (several proof-of-concept prototype walkers have been built), can be developed so that they are inexpensive, robust, and versatile carriers for a variety of instrument packages. Applications are immediate and many, in areas as diverse as prosthetics, medicine, space, construction, nanoscience, defense, remote sensing, environmental cleanup, and biotechnology.

  2. Modeling and motion analysis of autonomous paragliders

    OpenAIRE

    Chiara Toglia; Marilena Vendittelli

    2010-01-01

    This report describes a preliminary study on modeling and control of parafoil and payload systems with the twofold objective of developing tools for automatic testing and classification of parafoils and of devising autonomous paragliders able to accomplish long-range delivery or monitoring tasks. Three different models of decreasing complexity are derived and their accuracy compared by simulation.

  3. Control algorithms for autonomous robot navigation

    Energy Technology Data Exchange (ETDEWEB)

    Jorgensen, C.C.

    1985-09-20

    This paper examines control algorithm requirements for autonomous robot navigation outside laboratory environments. Three aspects of navigation are considered: navigation control in explored terrain, environment interactions with robot sensors, and navigation control in unanticipated situations. Major navigation methods are presented and relevance of traditional human learning theory is discussed. A new navigation technique linking graph theory and incidental learning is introduced.

  4. Autonomic neuropathy in acute intermittent porphyria.

    OpenAIRE

    Laiwah, A C; Macphee, G. J.; P Boyle; Moore, M R; Goldberg, A

    1985-01-01

    Autonomic function was assessed in subjects with acute intermittent porphyria and age- and sex-matched controls using five different bedside tests of cardiovascular reflexes. During the acute attack both parasympathetic and sympathetic tests were impaired, but subsequently improved during remission. Early parasympathetic dysfunction was also detected during remission and in latent asymptomatic acute intermittent porphyria.

  5. Autonomous Learning from a Social Cognitive Perspective

    Science.gov (United States)

    Ponton, Michael K.; Rhea, Nancy E.

    2006-01-01

    The current perspective of autonomous learning defines it as the agentive exhibition of resourcefulness, initiative, and persistence in self-directed learning. As a form of human agency, it has been argued in the literature that this perspective should be consistent with Bandura's (1986) Social Cognitive Theory (SCT). The purpose of this article…

  6. My Understanding on Cultivation of Autonomous Learning

    Institute of Scientific and Technical Information of China (English)

    张金玉

    2007-01-01

    Autonomous learning has been popular in western education system for some time, this article aims to analyze the connotation and the necessity of cultivating learner autonomy, and then offer some strategies about the cultivation of learner autonomy from a chinese perspective.

  7. Autonomic Modification of Intestinal Smooth Muscle Contractility

    Science.gov (United States)

    Montgomery, Laura E. A.; Tansey, Etain A.; Johnson, Chris D.; Roe, Sean M.; Quinn, Joe G.

    2016-01-01

    Intestinal smooth muscle contracts rhythmically in the absence of nerve and hormonal stimulation because of the activity of pacemaker cells between and within the muscle layers. This means that the autonomic nervous system modifies rather than initiates intestinal contractions. The practical described here gives students an opportunity to observe…

  8. Spatial abstraction for autonomous robot navigation.

    Science.gov (United States)

    Epstein, Susan L; Aroor, Anoop; Evanusa, Matthew; Sklar, Elizabeth I; Parsons, Simon

    2015-09-01

    Optimal navigation for a simulated robot relies on a detailed map and explicit path planning, an approach problematic for real-world robots that are subject to noise and error. This paper reports on autonomous robots that rely on local spatial perception, learning, and commonsense rationales instead. Despite realistic actuator error, learned spatial abstractions form a model that supports effective travel. PMID:26227680

  9. Autonomous droop scheme with reduced generation cost

    DEFF Research Database (Denmark)

    Nutkani, Inam Ullah; Loh, Poh Chiang; Blaabjerg, Frede

    2013-01-01

    DGs are usually of different types unlike synchronous generators. This paper presents an autonomous droop scheme that takes into consideration the operating cost, efficiency and emission penalty of each DG since all these factors directly or indirectly contributes to the Total Generation Cost (TGC...

  10. Autonomous behavior of hematopoietic stem cells

    NARCIS (Netherlands)

    Kamminga, LM; Akkerman, [No Value; Weersing, E; Ausema, A; Dontje, B; Van Zant, G; de Haan, G

    2000-01-01

    Objective. Mechanisms that affect the function of primitive hematopoietic stem cells with long-term proliferative potential remain largely unknown. Here we assessed whether properties of stem cells are cell-extrinsically or cell-autonomously regulated. Materials and Methods. We developed a model in

  11. Non-autonomous second order Hamiltonian systems

    OpenAIRE

    Pipan, J; Schechter, M

    2014-01-01

    We study the existence of periodic solutions for a second order non-autonomous dynamical system containing variable kinetic energy terms. Our assumptions balance the interaction between the kinetic energy and the potential energy with neither one dominating the other. We study sublinear problems and the existence of non-constant solutions. © 2014 Elsevier Inc.

  12. Autonomous Language Learning: The Teachers' Perspectives.

    Science.gov (United States)

    Chan, Victoria

    2003-01-01

    Reports on a large-scale study on learner autonomy in language learning carried out with students and English teachers at the Hong Kong Polytechnic University. Examines the teachers' views of their roles and responsibilities, their assessment of their students'decision-making abilities and the autonomous language learning activities that they have…

  13. Autonomic dysfunction in a Jack Russell terrier

    OpenAIRE

    Caines, Deanne; Pinard, Chantale L.; Kruth, Stephen; Orr, Jeremy; James, Fiona

    2011-01-01

    A 4-year-old Jack Russell terrier was presented with an array of clinical signs suggestive of autonomic dysfunction. Many of the clinical signs were consistent with a diagnosis of dysautonomia; however, both chronicity and resolution of signs contradicted a diagnosis of this disease.

  14. Geometric formulations and variational integrators of discrete autonomous Birkhoff systems

    International Nuclear Information System (INIS)

    The variational integrators of autonomous Birkhoff systems are obtained by the discrete variational principle. The geometric structure of the discrete autonomous Birkhoff system is formulated. The discretization of mathematical pendulum shows that the discrete variational method is as effective as symplectic scheme for the autonomous Birkhoff systems. (electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics)

  15. las relaciones interpersonales

    Directory of Open Access Journals (Sweden)

    Juan Gabriel Gómez Albarello

    2011-01-01

    Full Text Available En este ensayo discuto el efecto que han tenido las filtraciones realizadas por WikiLeaks en las relaciones internacionales y en las relaciones interpersonales. Sostengo que Wikileaks motivará a muchos a continuar con la práctica de tales filtraciones y que esa motivación proviene de la justificación de esa práctica en dos conjuntos de valores: la ética del hacker y los valores democráticos. También afirmo que el efecto de esas filtraciones puede causar un impacto profundo en la esfera de la cultura puesto que la evaluación de la conducta de los estadistas se realiza usualmente mediante de analogías basadas en la experiencia interpersonal. Luego de presentar argumentos en favor de decir la verdad en las relaciones personales, concluyo destacando la forma como se engranan varios tipos de argumentos.

  16. Advanced Autonomous Systems for Space Operations

    Science.gov (United States)

    Gross, A. R.; Smith, B. D.; Muscettola, N.; Barrett, A.; Mjolssness, E.; Clancy, D. J.

    2002-01-01

    New missions of exploration and space operations will require unprecedented levels of autonomy to successfully accomplish their objectives. Inherently high levels of complexity, cost, and communication distances will preclude the degree of human involvement common to current and previous space flight missions. With exponentially increasing capabilities of computer hardware and software, including networks and communication systems, a new balance of work is being developed between humans and machines. This new balance holds the promise of not only meeting the greatly increased space exploration requirements, but simultaneously dramatically reducing the design, development, test, and operating costs. New information technologies, which take advantage of knowledge-based software, model-based reasoning, and high performance computer systems, will enable the development of a new generation of design and development tools, schedulers, and vehicle and system health management capabilities. Such tools will provide a degree of machine intelligence and associated autonomy that has previously been unavailable. These capabilities are critical to the future of advanced space operations, since the science and operational requirements specified by such missions, as well as the budgetary constraints will limit the current practice of monitoring and controlling missions by a standing army of ground-based controllers. System autonomy capabilities have made great strides in recent years, for both ground and space flight applications. Autonomous systems have flown on advanced spacecraft, providing new levels of spacecraft capability and mission safety. Such on-board systems operate by utilizing model-based reasoning that provides the capability to work from high-level mission goals, while deriving the detailed system commands internally, rather than having to have such commands transmitted from Earth. This enables missions of such complexity and communication` distances as are not

  17. Las flores de Fibonacci

    OpenAIRE

    P-erez, Antonio

    2005-01-01

    Casi todo el mundo ha oído hablar de Leonardo de Pisa, más conocido como Fibonacci. Sí, claro, el de la famosa sucesión 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765,...; la de los girasoles, las piñas, las espirales, la del número de oro. Incluso hay un vídeo dedicado a él.

  18. Las competencias laborales

    OpenAIRE

    Mucci, Ottorino Oscar

    2001-01-01

    Las tradicionales formas de calificar al personal, desde el punto de vista del empleo, han sufrido modificaciones sustanciales en los últimos tiempos. Por ello, en este trabajo se intenta -sin desechar totalmente anteriores métodos- mostrar nuevos paradigmas que implican una visualización más abarcativa y profunda entendida como premisa para determinar no solo el potencial del empleado sino también las posibilidades de éxito en su desarrollo individual y colectivo.

  19. Autonomous Navigation for Autonomous Underwater Vehicles Based on Information Filters and Active Sensing

    OpenAIRE

    Tianhong Yan; Yan Liang; Shujing Zhang; Chao Li; Bo He; Hongjin Zhang

    2011-01-01

    This paper addresses an autonomous navigation method for the autonomous underwater vehicle (AUV) C-Ranger applying information-filter-based simultaneous localization and mapping (SLAM), and its sea trial experiments in Tuandao Bay (Shangdong Province, P.R. China). Weak links in the information matrix in an extended information filter (EIF) can be pruned to achieve an efficient approach-sparse EIF algorithm (SEIF-SLAM). All the basic update formulae can be implemented in constant time irrespec...

  20. Autonomous Job Analysis: A Method for Design of Autonomous Marine Operations

    OpenAIRE

    Grøtli, Esten Ingar; Vagia, Marialena; Fjerdingen, Sigurd Aksnes; Bjerkeng, Magnus Christian; Transeth, Aksel Andreas; Svendsen, Eirik; Rundtop, Per

    2016-01-01

    Increased use of autonomy is considered crucial for continued growth in maritime industries like oil- and gas, waterborne transport, and fisheries- and aquaculture. This article presents a method called Autonomous Job Analysis (AJA), which purpose is to guide the design of autonomous marine operations. AJA breaks down the operation, and focuses on autonomy early in the design phase. The method uses elements from Hierarchical Task Analysis (HTA), and the execution of the analysis is influen...

  1. Tethered operation of autonomous aerial vehicles to provide extended field of view for autonomous ground vehicles

    OpenAIRE

    Phang, Nyit Sin

    2006-01-01

    This thesis was part of the ongoing research conducted at the Naval Postgraduate School to achieve greater collaboration between heterogeneous autonomous vehicles. The research addresses optimal control issues in the collaboration between an Unmanned Aerial Vehicle (UAV) and Autonomous Ground Vehicles (AGV). The scenario revolves around using the camera onboard the UAV to extend the effective field of view of the AGV. For military operations, this could be helpful in improving security for co...

  2. La "etnicidad marginal" de las comunas de la península de Santa Elena, Ecuador

    Directory of Open Access Journals (Sweden)

    Martín Bazurco

    2005-06-01

    Full Text Available Las comunas de la Península de Santa Elena representan la continuidad histórica de las antiguas jefaturas Manteño - Huancavilcas. Estas comunas han logrado mantener el control de su territorio y una relativa autonomía socio-económica a lo largo de todo el período colonial y republicano, poniendo en práctica diversas estrategias de articulación con la sociedad dominante. Sin embargo, la supervivencia de estas comunidades se debate, hoy en día, entre las agresiones extemas a su temitodo, y su "etnicidad marginal" que las excluye del marco constitucional ecuatoriano destinado a la protección de los tenitorios étnicos. A continuación se analiza el proceso de resignificación de la diversidad al que están abocadas las comunas de la PSE.

  3. Autonomic consequences of spinal cord injury.

    Science.gov (United States)

    Hou, Shaoping; Rabchevsky, Alexander G

    2014-10-01

    Spinal cord injury (SCI) results not only in motor and sensory deficits but also in autonomic dysfunctions. The disruption of connections between higher brain centers and the spinal cord, or the impaired autonomic nervous system itself, manifests a broad range of autonomic abnormalities. This includes compromised cardiovascular, respiratory, urinary, gastrointestinal, thermoregulatory, and sexual activities. These disabilities evoke potentially life-threatening symptoms that severely interfere with the daily living of those with SCI. In particular, high thoracic or cervical SCI often causes disordered hemodynamics due to deregulated sympathetic outflow. Episodic hypertension associated with autonomic dysreflexia develops as a result of massive sympathetic discharge often triggered by unpleasant visceral or sensory stimuli below the injury level. In the pelvic floor, bladder and urethral dysfunctions are classified according to upper motor neuron versus lower motor neuron injuries; this is dependent on the level of lesion. Most impairments of the lower urinary tract manifest in two interrelated complications: bladder storage and emptying. Inadequate or excessive detrusor and sphincter functions as well as detrusor-sphincter dyssynergia are examples of micturition abnormalities stemming from SCI. Gastrointestinal motility disorders in spinal cord injured-individuals are comprised of gastric dilation, delayed gastric emptying, and diminished propulsive transit along the entire gastrointestinal tract. As a critical consequence of SCI, neurogenic bowel dysfunction exhibits constipation and/or incontinence. Thus, it is essential to recognize neural mechanisms and pathophysiology underlying various complications of autonomic dysfunctions after SCI. This overview provides both vital information for better understanding these disorders and guides to pursue novel therapeutic approaches to alleviate secondary complications. PMID:25428850

  4. La escuela portuguesa en el siglo XXI : autonomía y participación

    OpenAIRE

    Silva, José Manuel; Rodrigues, Célia; Silveirinha, Conceição; Mineiro, João Paulo; Felício, Paulo

    2016-01-01

    En el presente artículo, se hace un análisis de la situación de la enseñanza en Portugal en este principio del siglo XXI. Se destacan las cuestiones de la autonomía de la escuela y los modelos organizativos de administración y gestión que refuerzan la participación de las familias y de la comunidad en la dirección estratégica de los centros educativos y que, además, afirman el liderazgo del director con vistas a garantizar el mejoramiento del servicio público de educación. La concreción d...

  5. A Localisation and Navigation System for an Autonomous Wheel Loader

    OpenAIRE

    Lilja, Robin

    2011-01-01

    Autonomous vehicles are an emerging trend in robotics, seen in a vast range of applications and environments. Consequently, Volvo Construction Equipment endeavour to apply the concept of autonomous vehicles onto one of their main products. In the company’s Autonomous Machine project an autonomous wheel loader is being developed. As an ob jective given by the company; a demonstration proving the possibility of conducting a fully autonomous load and haul cycle should be performed. Conducting su...

  6. Análisis de los desarrollos normativos del Sistema para la Autonomía y Atención a la Dependencia. Serie: CERMI.es nº 40

    OpenAIRE

    Vidriales Fernández, Ruth; de Araoz Sánchez-Dopico, Inés; Beotas López, José Luis; López García, José Miguel; Marrero Macías, Rodrigo; Rodríguez Morilla, Adolfo

    2009-01-01

    Este documento, publicado por el CERMI, analiza la realidad de los niños españoles con discapacidad desde muy diversas perspectivas, gracias a las aportaciones de los distintos investigadores del Centro sobre Investigación de la Autonomía Personal, de la Facultad de Derecho de la UNED, que han colaborado en su redacción. El libro analiza el marco jurídico y las políticas públicas desarrolladas en nuestro país para atender las necesidades especiales de las personas menores de edad con discapac...

  7. Discrepancia entre padres e hijos en la percepción del funcionamiento familiar y desarrollo de la autonomía adolescente.

    OpenAIRE

    Alonso Stuyck, Paloma

    2005-01-01

    RESUMEN El estudio se enmarca en el paradigma contextual dialéctico, realizando una aproximación conceptual a la adolescencia, la familia, y la autonomía, y describiendo la transformación que han experimentado estas realidades. Desde el prisma evolutivo-educativo se entiende la autonomía adolescente como parte del proceso madurativo de definición de la primera identidad (Teoría Epigenética de Erikson). Parece que el conflicto paterno-filial, apoyado en la cercanía emocional en las relacion...

  8. social de las empresas

    Directory of Open Access Journals (Sweden)

    José Luis Lizcano Álvarez

    2006-01-01

    Full Text Available La Responsabilidad Social Corporativa se encuentra entre los principales temas del pensamiento empresarial y necesita de la crítica y el debate para afianzar su estructura, alcanzando así la coherencia necesaria. Repasando algunos reproches que se hacen a la RSC como teoría empresarial, se trata de mostrar cual es el error que en ellos se encuentra y porque no restan valor a las raíces de la responsabilidad social corporativa. Seguidamente, se expondrá algunos principios básicos del sistema, tratando de detallar las oportunidades que ofrece la responsabilidad social de la empresa al capitalismo futuro como elemento creativo y dinamizador. Además, se ofrece una visión de como la responsabilidad social corporativa puede implicar ganancias en libertad, flexibilidad y eficiencia para el conjunto de la sociedad si se orienta hacia una nueva forma de entender las relaciones entre el Estado y el sector privado con implicaciones sobre el gasto público y la carga fiscal. La propuesta de este artículo pretende abrirse camino entre las diversas aportaciones que están surgiendo en torno al desarrollo y la implantación del modelo de empresa socialmente responsable. Las conclusiones señaladas representan también el inicio de futuras líneas de trabajo de carácter técnico y empírico.

  9. Valoración del grado de autonomía funcional de pacientes renales crónicos según índices de Barthel, Lawton y baremo de Ley de Dependencia Evaluation of the degree of functional autonomy of chronic renal patients according to Barthel, Lawton indices and the scale of the Dependence Act

    OpenAIRE

    Eduard Camps Ballester; Lola Andreu Periz; Marta Colomer Codinachs; Laia Claramunt Fonts; Magda Pasaron Alonso

    2009-01-01

    La dependencia es un estado en el que se encuentran las personas que por razones ligadas a la falta o perdida de autonomía física, psíquica o intelectual, tienen necesidad de asistencia y/o ayudas importantes a fin de realizar las actividades básicas de la vida diaria. La Ley 39/2006, de Promoción de la Autonomía Personal y Atención a las personas en situación de dependencia incluye un baremo mediante el cual se determina el grado y nivel de dependencia de la persona a valorar. En el proceso ...

  10. Forced synchronization of autonomous dynamical Boolean networks

    International Nuclear Information System (INIS)

    We present the design of an autonomous time-delay Boolean network realized with readily available electronic components. Through simulations and experiments that account for the detailed nonlinear response of each circuit element, we demonstrate that a network with five Boolean nodes displays complex behavior. Furthermore, we show that the dynamics of two identical networks display near-instantaneous synchronization to a periodic state when forced by a common periodic Boolean signal. A theoretical analysis of the network reveals the conditions under which complex behavior is expected in an individual network and the occurrence of synchronization in the forced networks. This research will enable future experiments on autonomous time-delay networks using readily available electronic components with dynamics on a slow enough time-scale so that inexpensive data collection systems can faithfully record the dynamics

  11. Autonomous rough terrain navigation - Lessons learned

    Science.gov (United States)

    Miller, David P.

    1991-01-01

    Because of light-time delays, a planetary rover located on Mars or beyond will probably need to be able to navigate autonomously, in order to do significant exploration. Recent work at JPL has explored several different autonomous navigation strategies. This work includes highly deliberative methods that require large amounts of computation and internal storage but yield very planful behavior to more reactive systems that require less resources but whose behavior is more difficult to model. This paper briefly presents these methods, the results from experiments both in simulation and in the field, and some conclusions on the value of different approaches, and their possible impact on the structure of the robot and the mission architecture.

  12. Forced synchronization of autonomous dynamical Boolean networks

    Energy Technology Data Exchange (ETDEWEB)

    Rivera-Durón, R. R., E-mail: roberto.rivera@ipicyt.edu.mx; Campos-Cantón, E., E-mail: eric.campos@ipicyt.edu.mx [División de Matemáticas Aplicadas, Instituto Potosino de Investigación Científica y Tecnológica A. C., Camino a la Presa San José 2055, Col. Lomas 4 Sección, C.P. 78216, San Luis Potosí, S.L.P. (Mexico); Campos-Cantón, I. [Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, Álvaro Obregón 64, C.P. 78000, San Luis Potosí, S.L.P. (Mexico); Gauthier, Daniel J. [Department of Physics and Center for Nonlinear and Complex Systems, Duke University, Box 90305, Durham, North Carolina 27708 (United States)

    2015-08-15

    We present the design of an autonomous time-delay Boolean network realized with readily available electronic components. Through simulations and experiments that account for the detailed nonlinear response of each circuit element, we demonstrate that a network with five Boolean nodes displays complex behavior. Furthermore, we show that the dynamics of two identical networks display near-instantaneous synchronization to a periodic state when forced by a common periodic Boolean signal. A theoretical analysis of the network reveals the conditions under which complex behavior is expected in an individual network and the occurrence of synchronization in the forced networks. This research will enable future experiments on autonomous time-delay networks using readily available electronic components with dynamics on a slow enough time-scale so that inexpensive data collection systems can faithfully record the dynamics.

  13. Outdoor Field Experience with Autonomous Stations

    CERN Document Server

    Lopes, L; Blanco, A; Carolino, N; Cerda, M A; Conceicao, R; Cunha, O; Ferreira, M; Fonte, P; Luz, R; Mendes, L; Pereira, A; Pimenta, M; Sarmento, R; Tome, B

    2016-01-01

    In the last two decades Resistive Plate Chambers were employed in the Cosmic Ray Experiments COVER-PLASTEX and ARGO/YBJ. In both experiments the detectors were housed indoors, likely owing to gas distribution requirements and the need to control environment variables that directly affect RPCs operational stability. But in experiments where Extended Air Shower (EAS) sampling is necessary, large area arrays composed by dispersed stations are deployed, rendering this kind of approach impossible. In this situation, it would be mandatory to have detectors that could be deployed in small standalone stations, with very rare opportunities for maintenance, and with good resilience to environmental conditions. Aiming to meet these requirements, we started some years ago the development of RPCs for Autonomous Stations. The results from indoor tests and measurements were very promising, both concerning performance and stability under very low gas flow rate, which is the main requirement for Autonomous Stations. In this w...

  14. Auditory stimulation and cardiac autonomic regulation

    Directory of Open Access Journals (Sweden)

    Vitor E. Valenti

    2012-08-01

    Full Text Available Previous studies have already demonstrated that auditory stimulation with music influences the cardiovascular system. In this study, we described the relationship between musical auditory stimulation and heart rate variability. Searches were performed with the Medline, SciELO, Lilacs and Cochrane databases using the following keywords: "auditory stimulation", "autonomic nervous system", "music" and "heart rate variability". The selected studies indicated that there is a strong correlation between noise intensity and vagal-sympathetic balance. Additionally, it was reported that music therapy improved heart rate variability in anthracycline-treated breast cancer patients. It was hypothesized that dopamine release in the striatal system induced by pleasurable songs is involved in cardiac autonomic regulation. Musical auditory stimulation influences heart rate variability through a neural mechanism that is not well understood. Further studies are necessary to develop new therapies to treat cardiovascular disorders.

  15. Iatrogenic urological triggers of autonomic dysreflexia

    DEFF Research Database (Denmark)

    Liu, N; Zhou, M; Biering-Sørensen, F;

    2015-01-01

    STUDY DESIGN: This is a systematic review. OBJECTIVE: The objective of this study was to review the literature on iatrogenic urological triggers of autonomic dysreflexia (AD). SETTING: This study was conducted in an international setting. METHODS: A systematic review was conducted from Pub......Med search using AD/ autonomic hyperreflexia and spinal cord injury (SCI). Studies selected for review involved iatrogenic urological triggers of AD in individuals with SCI, including original articles, previous practice guidelines, case reports and literature reviews. Studies that did not report AD or blood...... pressure (BP) assessments during urological procedures were excluded. RESULTS: Forty studies were included for analysis and categorized into four groups: (1) urodynamics and cystometry; (2) cystoscopy and transurethral litholapaxy; (3) extracorporeal shock-wave lithotripsy (ESWL); and (4) other procedures...

  16. A mission planner for an autonomous tractor

    DEFF Research Database (Denmark)

    Bochtis, Dionysis; Vougioukas, S.G.; Griepentrog, Hans W.

    2009-01-01

    In this article, a mission planner of field coverage operations for an autonomous agricultural tractor is presented. Missions for a particular autonomous tractor are defined using an XML (extendible markup language) formatted file that can be uploaded to the tractor through the user interface....... Using the tree hierarchy of the mission file, several actions are determined, including the sequence of points the tractor has to follow, the type of motion between successive points (e.g.,straight motion or maneuvering), the type of predefined turning routine used in maneuvering, and the actions...... that should be taken once the tractor reaches the desired point (e.g., raising or lowering the attached tool, turning on or turning off the ower take-off). In order to automatically create the XML mission files, a program was developed using the MATLAB technical programming language. The program uses data...

  17. 13th International Conference Intelligent Autonomous Systems

    CERN Document Server

    Michael, Nathan; Berns, Karsten; Yamaguchi, Hiroaki

    2016-01-01

    This book describes the latest research accomplishments, innovations, and visions in the field of robotics as presented at the 13th International Conference on Intelligent Autonomous Systems (IAS), held in Padua in July 2014, by leading researchers, engineers, and practitioners from across the world. The contents amply confirm that robots, machines, and systems are rapidly achieving intelligence and autonomy, mastering more and more capabilities such as mobility and manipulation, sensing and perception, reasoning, and decision making. A wide range of research results and applications are covered, and particular attention is paid to the emerging role of autonomous robots and intelligent systems in industrial production, which reflects their maturity and robustness. The contributions have been selected through a rigorous peer-review process and contain many exciting and visionary ideas that will further galvanize the research community, spurring novel research directions. The series of biennial IAS conferences ...

  18. Development of autonomous grasping and navigating robot

    Science.gov (United States)

    Kudoh, Hiroyuki; Fujimoto, Keisuke; Nakayama, Yasuichi

    2015-01-01

    The ability to find and grasp target items in an unknown environment is important for working robots. We developed an autonomous navigating and grasping robot. The operations are locating a requested item, moving to where the item is placed, finding the item on a shelf or table, and picking the item up from the shelf or the table. To achieve these operations, we designed the robot with three functions: an autonomous navigating function that generates a map and a route in an unknown environment, an item position recognizing function, and a grasping function. We tested this robot in an unknown environment. It achieved a series of operations: moving to a destination, recognizing the positions of items on a shelf, picking up an item, placing it on a cart with its hand, and returning to the starting location. The results of this experiment show the applicability of reducing the workforce with robots.

  19. EEG and autonomic arousal measures in schizophrenics.

    Science.gov (United States)

    Joseph, C

    1989-04-01

    EEG and autonomic indices were measured in basal, tonic, and phasic conditions in order to delineate the nature of arousal dysfunction in schizophrenics as compared to normals. The experimental procedure involved six continuous recording sessions consisting of a basal recording before and after four experimental series. Sequentially, these were the visual nonsignal (VNS), the auditory nonsignal (ANS), the visual signal (VS), and the auditory signal (AS) series. The main findings indicated significant differences between the two groups in cardiovascular indices during the basal and tonic conditions and in the EEG and EMG indices of phasic response. These results suggest a dysfunction of basal and tonic autonomic arousal and a modulatory impairement of the central phasic arousal reaction. The findings are in accordance with the two arousal hypothesis postulated by Routtenberg (1968) and disconfirm the unitary concept of arousal for the explanation of psychophysiological abnormality in schizophrenia. PMID:2744968

  20. Autonomous reinforcement learning with experience replay.

    Science.gov (United States)

    Wawrzyński, Paweł; Tanwani, Ajay Kumar

    2013-05-01

    This paper considers the issues of efficiency and autonomy that are required to make reinforcement learning suitable for real-life control tasks. A real-time reinforcement learning algorithm is presented that repeatedly adjusts the control policy with the use of previously collected samples, and autonomously estimates the appropriate step-sizes for the learning updates. The algorithm is based on the actor-critic with experience replay whose step-sizes are determined on-line by an enhanced fixed point algorithm for on-line neural network training. An experimental study with simulated octopus arm and half-cheetah demonstrates the feasibility of the proposed algorithm to solve difficult learning control problems in an autonomous way within reasonably short time. PMID:23237972

  1. Autonomous Rovers for Polar Science Campaigns

    Science.gov (United States)

    Lever, J. H.; Ray, L. E.; Williams, R. M.; Morlock, A. M.; Burzynski, A. M.

    2012-12-01

    We have developed and deployed two over-snow autonomous rovers able to conduct remote science campaigns on Polar ice sheets. Yeti is an 80-kg, four-wheel-drive (4WD) battery-powered robot with 3 - 4 hr endurance, and Cool Robot is a 60-kg 4WD solar-powered robot with unlimited endurance during Polar summers. Both robots navigate using GPS waypoint-following to execute pre-planned courses autonomously, and they can each carry or tow 20 - 160 kg instrument payloads over typically firm Polar snowfields. In 2008 - 12, we deployed Yeti to conduct autonomous ground-penetrating radar (GPR) surveys to detect hidden crevasses to help establish safe routes for overland resupply of research stations at South Pole, Antarctica, and Summit, Greenland. We also deployed Yeti with GPR at South Pole in 2011 to identify the locations of potentially hazardous buried buildings from the original 1950's-era station. Autonomous surveys remove personnel from safety risks posed during manual GPR surveys by undetected crevasses or buried buildings. Furthermore, autonomous surveys can yield higher quality and more comprehensive data than manual ones: Yeti's low ground pressure (20 kPa) allows it to cross thinly bridged crevasses or other voids without interrupting a survey, and well-defined survey grids allow repeated detection of buried voids to improve detection reliability and map their extent. To improve survey efficiency, we have automated the mapping of detected hazards, currently identified via post-survey manual review of the GPR data. Additionally, we are developing machine-learning algorithms to detect crevasses autonomously in real time, with reliability potentially higher than manual real-time detection. These algorithms will enable the rover to relay crevasse locations to a base station for near real-time mapping and decision-making. We deployed Cool Robot at Summit Station in 2005 to verify its mobility and power budget over Polar snowfields. Using solar power, this zero

  2. Autonomous microexplosives subsurface tracing system final report.

    Energy Technology Data Exchange (ETDEWEB)

    Engler, Bruce Phillip; Nogan, John; Melof, Brian Matthew; Uhl, James Eugene; Dulleck, George R., Jr.; Ingram, Brian V.; Grubelich, Mark Charles; Rivas, Raul R.; Cooper, Paul W.; Warpinski, Norman Raymond; Kravitz, Stanley H.

    2004-04-01

    The objective of the autonomous micro-explosive subsurface tracing system is to image the location and geometry of hydraulically induced fractures in subsurface petroleum reservoirs. This system is based on the insertion of a swarm of autonomous micro-explosive packages during the fracturing process, with subsequent triggering of the energetic material to create an array of micro-seismic sources that can be detected and analyzed using existing seismic receiver arrays and analysis software. The project included investigations of energetic mixtures, triggering systems, package size and shape, and seismic output. Given the current absence of any technology capable of such high resolution mapping of subsurface structures, this technology has the potential for major impact on petroleum industry, which spends approximately $1 billion dollar per year on hydraulic fracturing operations in the United States alone.

  3. Visual SLAM for Autonomous Navigation of MAVs

    OpenAIRE

    Yang, Shaowu

    2014-01-01

    This thesis focuses on developing onboard visual simultaneous localization and mapping (SLAM) systems to enable autonomous navigation of micro aerial vehicles (MAVs), which is still a challenging topic considering the limited payload and computational capability that an MAV normally has. In MAV applications, the visual SLAM systems are required to be very efficient, especially when other visual tasks have to be done in parallel. Furthermore, robustness in pose tracking is highly desired in or...

  4. Smart Systems Integration for Autonomous Wireless Communications

    OpenAIRE

    Danesh, M.

    2012-01-01

    Integration of sensors and wireless transceivers for system networking aims at emerging applications that are highly integrated, self-powered, and low cost, relying on efficient power management schemes to prolong lifetime, thus eliminating the need for batteries as a limited primary source of energy. These applications include: health monitoring and body-area networks, environment and infrastructure monitoring, security, and building automation. Autonomous wireless transmitter sensor nodes t...

  5. Precise laser gyroscope for autonomous inertial navigation

    International Nuclear Information System (INIS)

    Requirements to gyroscopes of strapdown inertial navigation systems for aircraft application are formulated. The construction of a ring helium – neon laser designed for autonomous navigation is described. The processes that determine the laser service life and the relation between the random error of the angular velocity measurement and the surface relief features of the cavity mirrors are analysed. The results of modelling one of the promising approaches to processing the laser gyroscope signals are presented. (laser gyroscopes)

  6. DNA Hairpins: Fuel for Autonomous DNA Devices

    OpenAIRE

    Green, Simon J.; Lubrich, Daniel; Turberfield, Andrew J.

    2006-01-01

    We present a study of the hybridization of complementary DNA hairpin loops, with particular reference to their use as fuel for autonomous DNA devices. The rate of spontaneous hybridization between complementary hairpins can be reduced by increasing the neck length or decreasing the loop length. Hairpins with larger loops rapidly form long-lived kissed complexes. Hairpin loops may be opened by strand displacement using an opening strand that contains the same sequence as half of the neck and a...

  7. Modelling tunnel thrusters for autonomous underwater vehicles

    OpenAIRE

    Palmer, A.; Hearn, G.E.; Stevenson, P

    2008-01-01

    With 900 Autonomous Underwater Vehicles (AUVs) required over the next decade (Newman et al., 2007) existing survey-style AUVs need improved utilization factors. Additional control devices to extend operational capability need consideration together with the interchange between AUV control approaches. This paper considers supplementary through-body tunnel thruster control during the transition from survey operation to low-speed manoeuvring. Modified manoeuvring equations permit investigation o...

  8. Model Predictive Control of Autonomous Vehicles

    OpenAIRE

    Zanon, Mario; Frasch, Janick V.; Vukov, Milan; Sager, Sebastian; Diehl, Moritz

    2014-01-01

    International audience The control of autonomous vehicles is a challenging task that requires advanced control schemes. Nonlinear Model Predictive Control (NMPC) and Moving Horizon Estimation (MHE) are optimization-based control and estimation techniques that are able to deal with highly nonlinear, constrained, unstable and fast dynamic systems. In this chapter, these techniques are detailed, a descriptive nonlinear model is derived and the performance of the proposed control scheme is dem...

  9. Feasible Path Planning for Autonomous Vehicles

    Directory of Open Access Journals (Sweden)

    Vu Trieu Minh

    2014-01-01

    Full Text Available The objective of this paper is to find feasible path planning algorithms for nonholonomic vehicles including flatness, polynomial, and symmetric polynomial trajectories subject to the real vehicle dynamical constraints. Performances of these path planning methods are simulated and compared to evaluate the more realistic and smoother generated trajectories. Results show that the symmetric polynomial algorithm provides the smoothest trajectory. Therefore, this algorithm is recommended for the development of an automatic control for autonomous vehicles.

  10. Physiology of the Autonomic Nervous System

    OpenAIRE

    McCorry, Laurie Kelly

    2007-01-01

    This manuscript discusses the physiology of the autonomic nervous system (ANS). The following topics are presented: regulation of activity; efferent pathways; sympathetic and parasympathetic divisions; neurotransmitters, their receptors and the termination of their activity; functions of the ANS; and the adrenal medullae. In addition, the application of this material to the practice of pharmacy is of special interest. Two case studies regarding insecticide poisoning and pheochromocytoma are i...

  11. Flocking algorithm for autonomous flying robots.

    Science.gov (United States)

    Virágh, Csaba; Vásárhelyi, Gábor; Tarcai, Norbert; Szörényi, Tamás; Somorjai, Gergő; Nepusz, Tamás; Vicsek, Tamás

    2014-06-01

    Animal swarms displaying a variety of typical flocking patterns would not exist without the underlying safe, optimal and stable dynamics of the individuals. The emergence of these universal patterns can be efficiently reconstructed with agent-based models. If we want to reproduce these patterns with artificial systems, such as autonomous aerial robots, agent-based models can also be used in their control algorithms. However, finding the proper algorithms and thus understanding the essential characteristics of the emergent collective behaviour requires thorough and realistic modeling of the robot and also the environment. In this paper, we first present an abstract mathematical model of an autonomous flying robot. The model takes into account several realistic features, such as time delay and locality of communication, inaccuracy of the on-board sensors and inertial effects. We present two decentralized control algorithms. One is based on a simple self-propelled flocking model of animal collective motion, the other is a collective target tracking algorithm. Both algorithms contain a viscous friction-like term, which aligns the velocities of neighbouring agents parallel to each other. We show that this term can be essential for reducing the inherent instabilities of such a noisy and delayed realistic system. We discuss simulation results on the stability of the control algorithms, and perform real experiments to show the applicability of the algorithms on a group of autonomous quadcopters. In our case, bio-inspiration works in two ways. On the one hand, the whole idea of trying to build and control a swarm of robots comes from the observation that birds tend to flock to optimize their behaviour as a group. On the other hand, by using a realistic simulation framework and studying the group behaviour of autonomous robots we can learn about the major factors influencing the flight of bird flocks. PMID:24852272

  12. Autonomous Guided Car Using a Fuzzy Controller

    OpenAIRE

    Olivares Mendez, Miguel Angel; Campoy, Pascual; Mellado-Bataller, Ignacio; Mondragon, Ivan; Martinez, Carol; Sanchez-Lopez, Joseluis

    2013-01-01

    The goal of the work described in this paper is to develop a visual line guided system for being used on-board an Autonomous Guided Vehicle (AGV) commercial car, controlling the steering and using just the visual information of a line painted below the car. In order to implement the control of the vehicle, a Fuzzy Logic controller has been implemented, that has to be robust against curvature changes and velocity changes. The only input information for the controller is th...

  13. A memory model for autonomous virtual humans

    OpenAIRE

    Peters, Christopher; O'SULLIVAN, CAROL ANN

    2002-01-01

    PUBLISHED A memory model based on ?stage theory?, the dominant view of memory from the field of cognitive psychology, is presented for application to autonomous virtual humans. The virtual human senses external stimuli through a synthetic vision system. The vision system incorporates multiple modes of vision in order to accommodate a perceptual attention approach. The memory model is used to store perceived and attended object data at different stages in a filtering process....

  14. Autonomous Spacecraft Communication Interface for Load Planning

    Science.gov (United States)

    Dever, Timothy P.; May, Ryan D.; Morris, Paul H.

    2014-01-01

    Ground-based controllers can remain in continuous communication with spacecraft in low Earth orbit (LEO) with near-instantaneous communication speeds. This permits near real-time control of all of the core spacecraft systems by ground personnel. However, as NASA missions move beyond LEO, light-time communication delay issues, such as time lag and low bandwidth, will prohibit this type of operation. As missions become more distant, autonomous control of manned spacecraft will be required. The focus of this paper is the power subsystem. For present missions, controllers on the ground develop a complete schedule of power usage for all spacecraft components. This paper presents work currently underway at NASA to develop an architecture for an autonomous spacecraft, and focuses on the development of communication between the Mission Manager and the Autonomous Power Controller. These two systems must work together in order to plan future load use and respond to unanticipated plan deviations. Using a nominal spacecraft architecture and prototype versions of these two key components, a number of simulations are run under a variety of operational conditions, enabling development of content and format of the messages necessary to achieve the desired goals. The goals include negotiation of a load schedule that meets the global requirements (contained in the Mission Manager) and local power system requirements (contained in the Autonomous Power Controller), and communication of off-plan disturbances that arise while executing a negotiated plan. The message content is developed in two steps: first, a set of rapid-prototyping "paper" simulations are preformed; then the resultant optimized messages are codified for computer communication for use in automated testing.

  15. Designing Bidding Strategies for Autonomous Trading Agents

    OpenAIRE

    He, Minghua

    2004-01-01

    Increasingly many systems are being conceptualised, designed and implemented as marketplaces in which autonomous software entities (agents) trade services. These services can be commodities in e-commerce applications or data and knowledge services in information economies. In such systems, dynamic pricing through some form of negotiation or auction protocol is becoming the norm for many goods and customers. Thus, negotiation capabilities for software agents are a central concern. Specifically...

  16. Precise laser gyroscope for autonomous inertial navigation

    Energy Technology Data Exchange (ETDEWEB)

    Kuznetsov, A G; Molchanov, A V; Izmailov, E A [Joint Stock Company ' Moscow Institute of Electromechanics and Automatics' , Moscow (Russian Federation); Chirkin, M V [Ryazan State Radio Engineering University (Russian Federation)

    2015-01-31

    Requirements to gyroscopes of strapdown inertial navigation systems for aircraft application are formulated. The construction of a ring helium – neon laser designed for autonomous navigation is described. The processes that determine the laser service life and the relation between the random error of the angular velocity measurement and the surface relief features of the cavity mirrors are analysed. The results of modelling one of the promising approaches to processing the laser gyroscope signals are presented. (laser gyroscopes)

  17. Auditory stimulation and cardiac autonomic regulation

    OpenAIRE

    Vitor E Valenti; Guida, Heraldo L.; Frizzo, Ana C F; Cardoso, Ana C. V.; Vanderlei, Luiz Carlos M; Luiz Carlos de Abreu

    2012-01-01

    Previous studies have already demonstrated that auditory stimulation with music influences the cardiovascular system. In this study, we described the relationship between musical auditory stimulation and heart rate variability. Searches were performed with the Medline, SciELO, Lilacs and Cochrane databases using the following keywords: "auditory stimulation", "autonomic nervous system", "music" and "heart rate variability". The selected studies indicated that there is a strong correlation bet...

  18. Interception and Rendezvous Between Autonomous Vehicles

    OpenAIRE

    Crispin, Yechiel J.

    2008-01-01

    The interception and rendezvous problems between two autonomous vehicles moving in an underwater environment has been treated using an optimal control formulation with terminal constraints. The vehicles have a constant thrust propulsion system and use the direction of the thrust vector for steering and control. We use a genetic algorithm to determine directly the control history of the vehicle by evolving populations of possible solutions of initial value problems. In order to fulfill the fin...

  19. Miniature Autonomous Rocket Recovery System (MARRS)

    OpenAIRE

    Yakimenko, O.A.; Yingling, A.J.; Hewgley, C.W.; Seigenthaler, T.A.

    2011-01-01

    The article of record as published may be located at http://dx.doi.org/10.2514/6.2011-2597 Proceedings of the 21st AIAA Aerodynamic Decelerator Systems Technology Conference, Dublin, Ireland, May 23-26, 2011. This paper discusses the development and testing of the new-generation recovery system in highpowered rockets. It starts from the overall description of the rocket system, the requirements of the Miniature Autonomous Rocket Recovery System (MARRS) and is followed by a descrip...

  20. Autonomous Underwater Vehicle „ABYSS“

    OpenAIRE

    Linke, Peter; Lackschewitz, Klas

    2016-01-01

    The Autonomous Underwater Vehicle (AUV) „ABYSS“ is a modular AUV designed to survey the ocean combining geophysical studies of the seafloor with oceanographic investigations of the overlying water column. The basic mission of ABYSS is deep-sea exploration, specifically in volcanically and tectonically active parts, such as mid-ocean ridges. With a maximum mission depth of 6000 meters, the AUV uses several technologies to map the seafloor accurately and determine its geological ...

  1. Autonomous Underwater Vehicle „ABYSS“

    OpenAIRE

    Linke, Peter; Lackschewitz, Klas

    2016-01-01

    The Autonomous Underwater Vehicle (AUV) „ABYSS“ is a modular AUV designed to survey the ocean combining geophysical studies of the seafloor with oceanographic investigations of the overlying water column. The basic mission of ABYSS is deep-sea exploration, specifically in volcanically and tectonically active parts, such as mid-ocean ridges. With a maximum mission depth of 6000 meters, the AUV uses several technologies to map the seafloor accurately and determine its geological structure with ...

  2. An architecture for an autonomous learning robot

    Science.gov (United States)

    Tillotson, Brian

    1988-01-01

    An autonomous learning device must solve the example bounding problem, i.e., it must divide the continuous universe into discrete examples from which to learn. We describe an architecture which incorporates an example bounder for learning. The architecture is implemented in the GPAL program. An example run with a real mobile robot shows that the program learns and uses new causal, qualitative, and quantitative relationships.

  3. Autonomous valve for detection of biopolymer degradation

    OpenAIRE

    Keller, Stephan Urs; Noeth, Nadine-Nicole; Fetz, Stefanie; Grünefeld, Marco; Geschke, Oliver; Boisen, Anja; Haefliger, D.

    2009-01-01

    We present a polymer microvalve that allows the detection of biopolymer degradation without the need of external energy. The valve is based on a polymer container filled with a colored marker solution and closed by a thin lid. This structure is covered by a film of poly(L-lactide) and degradation of the biopolymer triggers the release of the color which is detected visually. The autonomous valve has potential for the fast testing of biopolymer degradation under various environmental condition...

  4. Unemployment in Galician autonomous community (Spain)

    OpenAIRE

    Seoane, Maria Jesus Freire; Cristal, Venancio Salcines; Freire, Maria Jesus Bilbao

    1998-01-01

    An aspect of unquestionable transcendency is the impact of the unemployment in the current society. Most part of the countries in the European continent present as from the decade of the 70's very significant rates of unemployment. The persistence of this characteristic in the occupational market constitutes the most important fact of concern for citizens and governments. The problem of the unemployment becomes much more serious in the case of Spain, and the Galician Autonomous Community is n...

  5. Impact of autonomous vehicles on urban mobility

    OpenAIRE

    Azmat, Muhammad

    2015-01-01

    The urban population is growing at an exponential rate throughout the world leading to the problems related to swift and speedy mobility or issues caused by convectional mobility options. This study illustrates and explores the new ways to transport people specially taking into account the self-driving cars concept and discusses the concept of mobility 4.0 (smart / intelligent mobility) and briefly highlights the technological aspects of autonomous vehicles, adaptation advantages and progress...

  6. Towards Robot Scientists for autonomous scientific discovery

    OpenAIRE

    Sparkes, Andrew; Aubrey, Wayne; Byrne, Emma; Clare, Amanda; Khan, Muhammed N; Liakata, Maria; Markham, Magdalena; Rowland, Jem; Soldatova, Larisa N.; Whelan, Kenneth E; Young, Michael; King, Ross D.

    2010-01-01

    We review the main components of autonomous scientific discovery, and how they lead to the concept of a Robot Scientist. This is a system which uses techniques from artificial intelligence to automate all aspects of the scientific discovery process: it generates hypotheses from a computer model of the domain, designs experiments to test these hypotheses, runs the physical experiments using robotic systems, analyses and interprets the resulting data, and repeats the cycle. We describe our two ...

  7. Collaborative reinforcement learning of autonomic behaviour

    OpenAIRE

    Dowling, Jim; CUNNINGHAM, RAYMOND; Curran, Eoin; Cahill, Vinny

    2004-01-01

    peer-reviewed This paper introduces Collaborative Reinforcement Learning (CRL), a coordination model for solving system-wide optimisation problems in distributed systems where there is no support for global state. In CRL the autonomic properties of a distributed system emerge from the coordination of individual agents solving discrete optimisation problems using Reinforcement Learning. In the context of an ad hoc routing protocol, we show how system-wide optimisation in CRL can be used t...

  8. Development of an Autonomous Mobile Robot

    OpenAIRE

    Niewada, Valentin

    2015-01-01

    Although the robotics community did a lot of research in the field of autonomous mobile robotics, there are still many unsolved challenges. With this dynamic, the European Robotics Challenges (EUROC) aim at enhancing mobile robotics research by building concrete projects with industrial applications. During my final year internship for the Télécom Physique Strasbourg’s Engineering Degree which has taken place in the Robotics and Mechatronics Institute at the DLR Oberpfaffenhofen (Germany),...

  9. An autonomous boat based Synthetic Aperture Sonar

    OpenAIRE

    Sergio Rui Silva; Sergio Cunha; Anibal Matos; Nuno Cruz

    2007-01-01

    This paper describes a Synthetic Aperture Sonar (SAS) system being developed at the University of Porto to be used in a small autonomous boat for the survey of shallow water environments, such as rivers, deltas, estuaries and dams. Its purpose is to obtain high resolution echo reflectivity maps through synthetic aperture techniques, taking advantage of the high precision navigation system of the boat. In the future the production of bottom tomography maps is also considered through the use of...

  10. The utility of pollination for autonomic computing

    OpenAIRE

    Kasinger, Holger; Bauer, Bernhard

    2006-01-01

    From the biology’s point of view, pollination is an important step in the reproduction of seed plants. From our point of view, pollination is a promising and novel, biological paradigm for future dependable and self-managing computing systems. This estimation is based on the characteristics the pollination process between plants and insects implies inherently. To utilize pollination as a paradigm for self-managing and thus autonomic computing systems, this paper identifies the useful prope...

  11. Identidad institucional de las organizaciones del Tercer Sector

    Directory of Open Access Journals (Sweden)

    Isabel de la Torre Prados

    2011-05-01

    Full Text Available El objetivo del artículo es ofrecer una aproximación descriptiva a los rasgos distintivos de las entidades del Tercer Sector, tanto desde el punto de vista de sus características organizativas como de su gobierno y gestión, considerando que estas tres líneas de análisis están condicionadas por el reconocimiento institucional de las funciones sociales que desempeñan el conjunto plural y heterogéneo de sus entidades, entendidas como organizaciones no lucrativas cuyos rasgos básicos son el carácter privado, el principio de no distribución de beneficios, la movilización de recursos voluntarios, la estructura organizativa formal y la capacidad de autonomía y gobierno.

  12. Analizar las interacciones virtuales

    Directory of Open Access Journals (Sweden)

    Luis Gómez Encinas

    2003-11-01

    Full Text Available El propósito de este artículo es abordar una serie de cuestiones relacionadas con las interacciones virtuales. En concreto, nos centraremos en el IRC, los comúnmente llamados chats, para a partir de una crítica a ciertos posicionamientos analíticos, expresar la necesidad de indagar en esa faceta del ciberespacio desde el punto de vista de las relaciones sociales. Nuevas relaciones sociales, que acontecen en un espacio nuevo, y que por tanto se desarrollan bajo reglas y motivaciones que desbordan los viejos esquemas de observación.

  13. Capitulo dos. Las licencias

    OpenAIRE

    Aliprandi, Simone

    2014-01-01

    1. Principios básicos En primer lugar, para evitar caer en los errores más comunes acerca de las licencias Creative Commons, tenemos que establecer los principios que son válidos para todas las licencias de contenido abierto. 1.1. Una definición de "licencia de derechos de autor" Una licencia de derecho de autor es un instrumento jurídico con el que el titular de los derechos de autor regla el uso y la distribución de su trabajo. Por lo tanto, se trata de una herramienta de derecho civil que ...

  14. Las Indias olvidadas

    OpenAIRE

    Padrón, Ricardo

    2015-01-01

    Ya que las Islas Filipinas fueron colonizadas desde América, y fueron gobernadas durante mas que dos siglos desde el Virreinato de la Nueva España, la cartografía imperial española de esta colonia lejana solía representarla como parte de un mundo trans-pacífico, atada a la imagen cartográfica del Nuevo Mundo. Este intento involucraba otro mas ambicioso de considerar a lo que normalmente llamamos las Indias Orientales como el extremo occidente del hemisferio hispánico, un proyecto que se puede...

  15. SOLON: An autonomous vehicle mission planner

    Science.gov (United States)

    Dudziak, M. J.

    1987-01-01

    The State-Operator Logic Machine (SOLON) Planner provides an architecture for effective real-time planning and replanning for an autonomous vehicle. The highlights of the system, which distinguish it from other AI-based planners that have been designed previously, are its hybrid application of state-driven control architecture and the use of both schematic representations and logic programming for the management of its knowledge base. SOLON is designed to provide multiple levels of planning for a single autonomous vehicle which is supplied with a skeletal, partially-specified mission plan at the outset of the vehicle's operations. This mission plan consists of a set of objectives, each of which will be decomposable by the planner into tasks. These tasks are themselves comparatively complex sets of actions which are executable by a conventional real-time control system which does not perform planning but which is capable of making adjustments or modifications to the provided tasks according to constraints and tolerances provided by the Planner. The current implementation of the SOLON is in the form of a real-time simulation of the Planner module of an Intelligent Vehicle Controller (IVC) on-board an autonomous underwater vehicle (AUV). The simulation is embedded within a larger simulator environment known as ICDS (Intelligent Controller Development System) operating on a Symbolics 3645/75 computer.

  16. Reference test courses for autonomous mobile robots

    Science.gov (United States)

    Jacoff, Adam; Messina, Elena; Evans, John

    2001-09-01

    One approach to measuring the performance of intelligent systems is to develop standardized or reproducible tests. These tests may be in a simulated environment or in a physical test course. The National Institute of Standards and Technology has developed a test course for evaluating the performance of mobile autonomous robots operating in an urban search and rescue mission. The test course is designed to simulate a collapsed building structure at various levels of fidelity. The course will be used in robotic competitions, such as the American Association for Artificial Intelligence (AAAI) Mobile Robot Competition and the RoboCup Rescue. Designed to be repeatable and highly reconfigurable, the test course challenges a robot's cognitive capabilities such as perception, knowledge representation, planning, autonomy and collaboration. The goal of the test course is to help define useful performance metrics for autonomous mobile robots which, if widely accepted, could accelerate development of advanced robotic capabilities by promoting the re-use of algorithms and system components. The course may also serve as a prototype for further development of performance testing environments which enable robot developers and purchasers to objectively evaluate robots for a particular application. In this paper we discuss performance metrics for autonomous mobile robots, the use of representative urban search and rescue scenarios as a challenge domain, and the design criteria for the test course.

  17. Grid administration: towards an autonomic approach

    International Nuclear Information System (INIS)

    Within the DIRAC framework in the LHCb collaboration, we deployed an autonomous policy system acting as a central status information point for grid elements. Experts working as grid administrators have a broad and very deep knowledge about the underlying system which makes them very precious. We have attempted to formalize this knowledge in an autonomous system able to aggregate information, draw conclusions, validate them, and take actions accordingly. The DIRAC Resource Status System (RSS) is a monitoring and generic policy system that enforces managerial and operational actions automatically. As an example, the status of a grid entity can be evaluated using a number of policies, each making assessments relative to specific monitoring information. Individual results of these policies can be combined to evaluate and propose a global status for the resource. This evaluation goes through a validation step driven by a state machine and an external validation system. Once validated, actions can be triggered accordingly. External monitoring and testing systems such as Nagios or Hammercloud are used by policies for site commission and certification. This shows the flexibility of our system, and of what an autonomous policy system can achieve.

  18. Diagnosing faults in autonomous robot plan execution

    Science.gov (United States)

    Lam, Raymond K.; Doshi, Rajkumar S.; Atkinson, David J.; Lawson, Denise M.

    1989-01-01

    A major requirement for an autonomous robot is the capability to diagnose faults during plan execution in an uncertain environment. Many diagnostic researches concentrate only on hardware failures within an autonomous robot. Taking a different approach, the implementation of a Telerobot Diagnostic System that addresses, in addition to the hardware failures, failures caused by unexpected event changes in the environment or failures due to plan errors, is described. One feature of the system is the utilization of task-plan knowledge and context information to deduce fault symptoms. This forward deduction provides valuable information on past activities and the current expectations of a robotic event, both of which can guide the plan-execution inference process. The inference process adopts a model-based technique to recreate the plan-execution process and to confirm fault-source hypotheses. This technique allows the system to diagnose multiple faults due to either unexpected plan failures or hardware errors. This research initiates a major effort to investigate relationships between hardware faults and plan errors, relationships which were not addressed in the past. The results of this research will provide a clear understanding of how to generate a better task planner for an autonomous robot and how to recover the robot from faults in a critical environment.

  19. Review of Static Compensation of Autonomous Systems

    Directory of Open Access Journals (Sweden)

    Ambarnath Banerji

    2012-01-01

    Full Text Available Abstract Deregulation of the electric power energy market has thrown open opportunities for tapping the large number of small pockets of renewable energy sources with the asynchronous generators. Whether the power is supplied by asynchronous generator or by the grid at the remote location, its quality has become an important aspect for consumers of electricity. Efforts have been made to improve the power quality using passive filters, active filters and the new concept of Custom Power. Use of Custom power devices ensures that a load do not pollute the power supply of the other loads. One such custom power device is the DSTATCOM (Distribution Static Compensator which is connected in shunt at the load end. The heart of the DSTATCOM is an inverter. The focus on the autonomous generation has increased in the recent years. The paper presents a comprehensive review of the DSTATCOM used for autonomous generation. It is aimed at providing a broad perspective on the status of DSTATCOM, used with Asynchronous generators, vis-à-vis its working principle, topology, solid state switching devices and technology, supply system, control methodologies and approaches, technical and economic considerations, etc. to researchers and application engineers dealing with power quality aspects of Autonomous Systems. Classified manner in which the references are presented in this paper will serve them as quick and useful reference.

  20. Autonomous system for cross-country navigation

    Science.gov (United States)

    Stentz, Anthony; Brumitt, Barry L.; Coulter, R. C.; Kelly, Alonzo

    1993-05-01

    Autonomous cross-country navigation is essential for outdoor robots moving about in unstructured environments. Most existing systems use range sensors to determine the shape of the terrain, plan a trajectory that avoids obstacles, and then drive the trajectory. Performance has been limited by the range and accuracy of sensors, insufficient vehicle-terrain interaction models, and the availability of high-speed computers. As these elements improve, higher- speed navigation on rougher terrain becomes possible. We have developed a software system for autonomous navigation that provides for greater capability. The perception system supports a large braking distance by fusing multiple range images to build a map of the terrain in front of the vehicle. The system identifies range shadows and interpolates undersamples regions to account for rough terrain effects. The motion planner reduces computational complexity by investigating a minimum number of trajectories. Speeds along the trajectory are set to provide for dynamic stability. The entire system was tested in simulation, and a subset of the capability was demonstrated on a real vehicle. Results to date include a continuous 5.1 kilometer run across moderate terrain with obstacles. This paper begins with the applications, prior work, limitations, and current paradigms for autonomous cross-country navigation, and then describes our contribution to the area.

  1. Autonomous and Autonomic Systems: A Paradigm for Future Space Exploration Missions

    Science.gov (United States)

    Truszkowski, Walter F.; Hinchey, Michael G.; Rash, James L.; Rouff, Christopher A.

    2004-01-01

    NASA increasingly will rely on autonomous systems concepts, not only in the mission control centers on the ground, but also on spacecraft and on rovers and other assets on extraterrestrial bodies. Automomy enables not only reduced operations costs, But also adaptable goal-driven functionality of mission systems. Space missions lacking autonomy will be unable to achieve the full range of advanced mission objectives, given that human control under dynamic environmental conditions will not be feasible due, in part, to the unavoidably high signal propagation latency and constrained data rates of mission communications links. While autonomy cost-effectively supports accomplishment of mission goals, autonomicity supports survivability of remote mission assets, especially when human tending is not feasible. Autonomic system properties (which ensure self-configuring, self-optimizing self-healing, and self-protecting behavior) conceptually may enable space missions of a higher order into any previously flown. Analysis of two NASA agent-based systems previously prototyped, and of a proposed future mission involving numerous cooperating spacecraft, illustrates how autonomous and autonomic system concepts may be brought to bear on future space missions.

  2. Tecnología asistencial móvil, con realidad aumentada, para las personas mayores

    Directory of Open Access Journals (Sweden)

    Rafael Saracchini

    2015-07-01

    Full Text Available Las posibilidades que ofrecen las tecnologías son muchas, sin embargo, las personas mayores son a menudo incapaces de disfrutar de ellas plenamente, sintiéndose desanimadas o intimidadas por estos nuevos dispositivos. Esto les lleva a un progresivo aislamiento en una sociedad donde es esencial conocer las distintas formas de comunicación a través de Internet y las TIC. En este trabajo presentamos un estudio realizado durante el proyecto Nacodeal, cuyo objetivo es ofrecer una solución tecnológica para proporcionar autonomía y una mejor calidad de vida para las personas mayores durante sus actividades diarias mediante la integración de las TIC. Para lograr este objetivo se ha desarrollado tecnología puntera en realidad aumentada (RA, así como servicios de Internet e interfaces para dispositivos móviles especialmente diseñados para personas mayores. Estas tecnologías emplean la infraestructura presente en la mayoría de casas y centros de cuidados de mayores. Presentamos un prototipo de sistema compuesto por una tableta y un dispositivo de RA portátil, así como el análisis del impacto social en la interacción con usuarios y la valoración de la aceptación y usabilidad. Esta evaluación se llevó a cabo a través de grupos focales y pruebas piloto individuales con 48 participantes: ancianos, cuidadores y expertos. Sus comentarios concluyen que existen fuertes beneficios e intereses por parte de las personas mayores en las TIC asistenciales basadas en RA, especialmente en los aspectos relacionados con la comunicación y autonomía.

  3. Las TIC como fuente de ventaja competitiva en las PYMES

    OpenAIRE

    Álvaro Fernando Moncada Niño; Martha Lucía Oviedo Franco

    2013-01-01

    Desde su aparición, las Tecnologías de la Información y las Comunicaciones (TIC) se han convertido en un recurso fundamental de las empresas para competir en la mayoría de las industrias, generalizando el planteamiento de que son fuente de ventaja competitiva. Pero realmente, ¿cuándo las TIC son fuente potencial de ventaja competitiva para las pymes? ¿Bajo qué condiciones se logra que contribuyan a generar valor y mejorar su posición competitiva? ¿Qué características deben cumplir para alcanz...

  4. Los cuidados y las mujeres en las familias Los cuidados y las mujeres en las familias

    Directory of Open Access Journals (Sweden)

    María Teresa Martín Palomo

    2008-12-01

    Full Text Available This article proposes a reflection on a debate that is generating an important theorical and empirical production: the care. In the first place, the specificity of care is explored from a point of view that includes, besides the material aspects, affective and moral ones. It stands out the complexity of care at the different dimensions that operate in this concept. Second: care is changing in our society, starting from the massive and durable arrival of women to the labor market. In the families women are mainly responsible or caring for aged population, children and other fragile people. As to this moment care has not been reorganized among the genders, they have been the women of different generations who have articulated its solidarities with available state help or appealing to the market to cover the necessities of its relatives. Howevwe, the graving deficit in the provision of family care seems to approach a point of not sustainability in the near future. Propoal of “social care” offer institutional articulation between private solidarities and public duties in the allotment of family care so tha society in general can bear to the participation of women in the labour work. This implying the return of moral responsibility in the politics of care.Este artículo propone una reflexión sobre uno de los debates que está generando una importante producción teórica y empírica en los últimos años: los cuidados. Para ello, en primer lugar, se explora la especificidad de los cuidados ampliando el enfoque desde un punto de vista que incluya, además de los aspectos materiales, aspectos afectivos y morales. Se destaca la transversalidad y enorme complejidad de los cuidados por las diferentes dimensiones que operan en dicho concepto. En segundo lugar, se revisa como se están reestructurando los cuidados en nuestra sociedad a partir de las transformaciones que ha provocado la llegada masiva y duradera de mujeres al mercado laboral, a la par

  5. Autonomous Image Analysis for Future Mars Missions

    Science.gov (United States)

    Gulick, V. C.; Morris, R. L.; Ruzon, M. A.; Bandari, E.; Roush, T. L.

    1999-01-01

    To explore high priority landing sites and to prepare for eventual human exploration, future Mars missions will involve rovers capable of traversing tens of kilometers. However, the current process by which scientists interact with a rover does not scale to such distances. Specifically, numerous command cycles are required to complete even simple tasks, such as, pointing the spectrometer at a variety of nearby rocks. In addition, the time required by scientists to interpret image data before new commands can be given and the limited amount of data that can be downlinked during a given command cycle constrain rover mobility and achievement of science goals. Experience with rover tests on Earth supports these concerns. As a result, traverses to science sites as identified in orbital images would require numerous science command cycles over a period of many weeks, months or even years, perhaps exceeding rover design life and other constraints. Autonomous onboard science analysis can address these problems in two ways. First, it will allow the rover to preferentially transmit "interesting" images, defined as those likely to have higher science content. Second, the rover will be able to anticipate future commands. For example, a rover might autonomously acquire and return spectra of "interesting" rocks along with a high-resolution image of those rocks in addition to returning the context images in which they were detected. Such approaches, coupled with appropriate navigational software, help to address both the data volume and command cycle bottlenecks that limit both rover mobility and science yield. We are developing fast, autonomous algorithms to enable such intelligent on-board decision making by spacecraft. Autonomous algorithms developed to date have the ability to identify rocks and layers in a scene, locate the horizon, and compress multi-spectral image data. We are currently investigating the possibility of reconstructing a 3D surface from a sequence of images

  6. Las marcas no tradicionales

    Directory of Open Access Journals (Sweden)

    Juan David Castro

    2012-11-01

    Full Text Available Las transformaciones en el comercio tanto nacional como internacionalmente han hecho necesario el aparecimiento de nuevas formas de manifestación de los signos destinados a diferenciar los productos y servicios en el mercado. El artículo reseña algunos de ellos.

  7. Las voces del silencio

    Directory of Open Access Journals (Sweden)

    María Angélica Semilla Durán

    2010-10-01

    Full Text Available The article analyses the novel by Carlos Gamerro El secreto y las voces in the framework of the texts studying the memory issues of the last Argentinian dictatorship. The purpose here is to shed light on the narrative devices used to describe the logical manipulations, the verbal shift and the social mechanisms that contributed to configure a society globally accomplice of the crimes committed by the dictatorship, be it by naturalization or concealment. The silence plot is difficult to counter, and when the speech finally returns, it carries other unsensed secrets and shows that all the consciences have, in one way or another, lacked vigilance.El artículo analiza la novela de Carlos Gamerro El secreto y las voces, inscribiéndola en el marco de los textos que trabajan sobre la memoria de la última dictadura argentina. Se trata de poner en evidencia los procedimientos narrativos utilizados para describir las manipulaciones lógicas, los desvíos verbales y los mecanismos sociales qui contribuyeron a configurar una sociedad globalmente pasiva, cómplice en cierta medida de los crímenes de la dictadura, por naturalización u ocultación. Es difícil quebrar el complot del silencio, y cuando la palabra se libera finalmente,  porta otros secretos imprevistos y muestra que todas las consciencias, de una manera u otra, han fallado al deber de vigilancia.

  8. Límites a la autonomía indígena en la Amazonia colombiana

    Directory of Open Access Journals (Sweden)

    François Correa Rubio

    2015-07-01

    Full Text Available En las últimas tres décadas, la imagen del Estado sobre la Amazonia se ha transformado. De considerarla como una región que solo producía gastos al erario público, las prospecciones minero-energéticas demuestran la presencia de recursos ávidamente demandados por el mercado mundial que aclimatará la política de reprimarización de la economía y la privatización de los procesos extractivos, en manos de empresas transnacionales, amparado en la propiedad estatal del subsuelo y en el de interés nacional con respecto a sus bienes. Paradójicamente, durante el mismo periodo, las normas nacionales e internacionales han reconocido la autonomía de los indígenas, como un derecho fundamental, que promovió su reorganización, bajo una entidad panétnica, con vínculosnacionales e internacionales, que participa de escenarios de concertación política con el Estado, en defensa de sus derechos colectivos, articulándolos con reivindicaciones popularesregionales. Aunque la autonomía no se restringe al control territorial, como siempre ocurre con las economías de enclave, su oneroso impacto se descargará sobre el territorioy sus pobladores, que en la Amazonia incluye más del 60 % de los grupos indígenas del país. Este artículo introduce la tensión sobre las expectativas y el reciente impacto de las políticas de intervención del Estado en la Amazonia y el proceso de reorganización del movimiento indígena. 

  9. La construcción de la mirada de las personas ciegas : La orientación en el espacio

    OpenAIRE

    Domínguez, Eugenia; García, María Renata; Dupleich, Julieta Laura

    2015-01-01

    Las personas ciegas en un primer tiempo lógico: se orientan en el espacio, esto es fundamental para que accedan a la alfabetización en braille. Si bien, las personas ciegas no cuentan con el sentido de la visión pueden con su mirada construir una imagen del espacio que caminan como el resto de la sociedad. La mirada en una conjuntura con los distintos sentidos: el olfato, el tacto, el oído, la orientación en el espacio hacen a la autonomía. El objetivo es que las personas ciegas pued...

  10. A Priori User Acceptance and the Perceived Driving Pleasure in Semi-autonomous and Autonomous Vehicles

    DEFF Research Database (Denmark)

    Bjørner, Thomas

    concerns about trust, user interactions and legislation, as well as the use of technology when driving on highways. Future studies should use a more substantial theoretical framework and real-life tests for a better understanding of user acceptance of driving automation.......The aim of this minor pilot study is, from a sociological user perspective, to explore a priori user acceptance and the perceived driving pleasure in semi- autonomous and autonomous vehicles. The methods used were 13 in-depth interviews while having participants watch video examples within four...

  11. Methods of determining complete sensor requirements for autonomous mobility

    Science.gov (United States)

    Curtis, Steven A. (Inventor)

    2012-01-01

    A method of determining complete sensor requirements for autonomous mobility of an autonomous system includes computing a time variation of each behavior of a set of behaviors of the autonomous system, determining mobility sensitivity to each behavior of the autonomous system, and computing a change in mobility based upon the mobility sensitivity to each behavior and the time variation of each behavior. The method further includes determining the complete sensor requirements of the autonomous system through analysis of the relative magnitude of the change in mobility, the mobility sensitivity to each behavior, and the time variation of each behavior, wherein the relative magnitude of the change in mobility, the mobility sensitivity to each behavior, and the time variation of each behavior are characteristic of the stability of the autonomous system.

  12. Lo relativo y lo universal en la defensa de las humanidades para la democracia

    Directory of Open Access Journals (Sweden)

    Liliana Galindo

    2015-09-01

    Full Text Available Cuando se pone en duda la importancia del estudio de las humanidades aparecen varios argumentos en su defensa. En este ensayo se analiza uno de ellos: la democracia las necesita. A partir del modelo educativo para la democracia que Martha Nussbaum propone en Sin fines de lucro: por qué la democracia necesita de las humanidades se explora la noción de educación liberal, la necesidad de la democracia y la idea de humanidad que aparecen en este argumento, con el fin de preguntarnos sobre la importancia que se le da al estudio especializado de las humanidades en la educación superior, lo que se entiende por ellas, su autonomía frente a su función para la democracia, y la manera en que educan la forma en que vemos a los otros y nos relacionamos con ellos. 

  13. Educación socioemocional en el autismo: una propuesta psicoeducativa basada en las TIC

    OpenAIRE

    Herrero Llorente, Patricia

    2015-01-01

    El presente trabajo se basa en el diseño de una propuesta de intervención psicopedagógica para la mejora del alumnado con autismo en la etapa de Educación Primaria en el ámbito social y emocional. Este programa se ha fundamentado en el desarrollo de la competencia socioemocional y en el reconocimiento y expresión de las emociones, la gestión de las mismas, así como la mejora del autoconocimiento, la autorregulación, la autonomía, la empatía y la gestión de relaciones. Todo ello...

  14. Para una historia comparada de las literaturas de América

    OpenAIRE

    Peña Trujillo, Dalia

    2012-01-01

    Asomarse a la realidad de Hispanoamérica, en el contexto de una autonomía regional, específicamente en las exposiciones del cuento, con más precisión de los años cincuenta e hilando más delgado, con los mitos a partir de la mexicanidad, es pisar con mucho cuidado para que el terreno no resulte resbaladizo. La atalaya panameña, donde se ha situado el lente de mis observaciones, cambia las perspectivas en la visión acerca de Hispanoamérica puesto que se parte de algunas realidades: si hay un pa...

  15. Maternidad adolescente de las jovenes tuteladas en Cataluña

    OpenAIRE

    Zárate Alva, Nair Elizabeth

    2013-01-01

    Los jóvenes tutelados experimentan muchas dificultades en su transición a la vida adulta. Un 30% de las jóvenes tuteladas se convierten en madres adolescentes lo cual aún dificulta más su proceso de autonomía. Las jóvenes tuteladas empiezan sus relaciones sexuales antes que sus pares y tienen más parejas sexuales, a pesar de que los educadores les dan pleno acceso a la información y a los métodos contraceptivos. Objetivo: El objetivo del estudio es analizar los factores cognitivos, afecti...

  16. Modelling of a PMSG Wind Turbine with Autonomous Control

    OpenAIRE

    2014-01-01

    The aim of this research is to model an autonomous control wind turbine driven permanent magnetic synchronous generator (PMSG) which feeds alternating current (AC) power to the utility grid. Furthermore, this research also demonstrates the effects and the efficiency of PMSG wind turbine which is integrated by autonomous controllers. In order for well autonomous control, two voltage source inverters are used to control wind turbine connecting with the grid. The generator-side inverter is used ...

  17. A study of autonomic function tests in obese people

    OpenAIRE

    Rinku Garg, Varun Malhotra, Neera Goel, Usha Dhar, Yogesh Tripathi

    2013-01-01

    Background: Obesity is one of the common significant health hazards and is associated with autonomic dysfunction. Aims and objectives: The present study was designed to assess the underlying autonomic neuropathy in obese subjects and to compare it with age-matched controls. Material and Methods: Thirty obese subjects in the age group of 21-40 years were recruited for the study. Six non-invasive autonomic function tests were performed out of which four were based mainly on parasympathetic cont...

  18. Autonomic and surgical substrate modulation of atrial fibrillation

    OpenAIRE

    Krul, S.P.J.

    2016-01-01

    This thesis focuses on the effects of fibrosis and the autonomic nervous system on conduction in patients with atrial fibrillation and the surgical ablation of the atria and autonomic nervous system as treatment of atrial fibrillation. Atrial fibrillation is the most common arrhythmia and results from multiple pathophysiological mechanisms. Both fibrosis and the autonomic nervous system influence the occurrence and maintenance of AF. Animal and clinical studies have shown that the parasympath...

  19. Autonomous Navigation with Constrained Consistency for C-Ranger

    OpenAIRE

    Shujing Zhang; Bo He; Lulu Ying; Minghui Li; Guang Yuan

    2014-01-01

    Autonomous underwater vehicles (AUVs) have become the most widely used tools for undertaking complex exploration tasks in marine environments. Their synthetic ability to carry out localization autonomously and build an environmental map concurrently, in other words, simultaneous localization and mapping (SLAM), are considered to be pivotal requirements for AUVs to have truly autonomous navigation. However, the consistency problem of the SLAM system has been greatly ignored during the past dec...

  20. Modeling and Simulation of Autonomous Intersection Management Protocols

    OpenAIRE

    El Kadi, Ayman

    2015-01-01

    The advent of autonomous vehicles enables the possibility for autonomous intersection management technologies, which should provide safe, collision-free crossing, while also reducing traffic delays compared to traffic lights or stop signs. This delay reduction is the product of algorithms and communication protocols that make use of increased precision of autonomous vehicles as opposed to human drivers, allowing vehicles to make split-second decisions on their speed while crossing an intersec...

  1. General outstanding considerations on legal issues applied to autonomous vehicles

    OpenAIRE

    Martinesco, Andrea; Etgens, Victor H.

    2015-01-01

    International audience Even if there are many differences between the autonomous vehicles and aviation, we have tried to show that the long history of automation in airplanes can be a source of inspiration to understand some legal aspects necessary to allow autonomous cars on the streets. Independent on the technological evolution, the premise of this work is to ask the questions that must be faced if a fatal accident involving an autonomous vehicle occurs. In this sense, criminal issues w...

  2. The influencing factors and Countermeasures of College Students' Autonomous Learning

    Institute of Scientific and Technical Information of China (English)

    安雨

    2016-01-01

    with the continuous development of society, people's life has become increasingly rich, but with the development of society, we are increasingly being tempted, the most obvious is our life in the University, the students focused on autonomous learning, but with the temptation is more and more big, the college students' autonomous learning learning ability to drop, a lot of people irresistible university life becomes boring temptation. What are the factors that affect college students' autonomous learning?

  3. Basilar artery aneurysm with autonomic features: an interesting pathophysiological problem

    OpenAIRE

    Giffin, N; Goadsby, P

    2001-01-01

    Unruptured cerebral aneurysms often present with neuro-ophthalmological symptoms but ocular autonomic involvement from an aneurysm of the posterior circulation has not previously been reported. A patient is described with a basilar artery aneurysm presenting with headache and unilateral autonomic symptoms. After angiographic coiling of the aneurysm there was a near complete resolution of these features. The relevant anatomy and proposed mechanism of autonomic involvement of what may be ...

  4. A cloud-assisted design for autonomous driving

    OpenAIRE

    Suresh Kumar, Swarun; Gollakota, Shyamnath; Katabi, Dina

    2012-01-01

    This paper presents Carcel, a cloud-assisted system for autonomous driving. Carcel enables the cloud to have access to sensor data from autonomous vehicles as well as the roadside infrastructure. The cloud assists autonomous vehicles that use this system to avoid obstacles such as pedestrians and other vehicles that may not be directly detected by sensors on the vehicle. Further, Carcel enables vehicles to plan efficient paths that account for unexpected events such as road-work or accidents....

  5. Finite time stability conditions for non autonomous continuous systems

    OpenAIRE

    Moulay, Emmanuel; Perruquetti, Wilfrid

    2008-01-01

    Finite time stability is defined for continuous non autonomous systems. Starting with a result from Haimo Haimo (1986) we then extend this result to n¡dimensional non autonomous systems through the use of smooth and nonsmooth Lyapunov functions as in Perruquetti and Drakunov (2000). One obtains two different sufficient conditions and a necessary one for finite time stability of continuous non autonomous systems.

  6. Managing Autonomous Mobility on Demand Systems for Better Passenger Experience

    OpenAIRE

    Shen, Wen; Lopes, Cristina

    2015-01-01

    Autonomous mobility on demand systems, though still in their infancy, have very promising prospects in providing urban population with sustainable and safe personal mobility in the near future. While much research has been conducted on both autonomous vehicles and mobility on demand systems, to the best of our knowledge, this is the first work that shows how to manage autonomous mobility on demand systems for better passenger experience. We introduce the Expand and Target algorithm which can ...

  7. Non-autonomous Svinolupov Jordan KdV Systems

    OpenAIRE

    Gurses, Metin; Karasu, Atalay; Turhan, Refik

    2001-01-01

    Non-autonomous Svinolupov-Jordan systems are considered. The integrability criteria of such systems are associated with the existence of recursion operators. A new non-autonomous KdV system is obtained and its recursion operator is given for all $N$. The examples for N=2 and N=3 are studied in detail. Some possible transformations are also discussed which map some systems to autonomous cases.

  8. Evaluation of autonomic functions in subclinical hypothyroid and hypothyroid patients

    OpenAIRE

    Mahajan, Aarti S.; Ram Lal; Dhanwal, Dinesh K.; Jain, Ajay K.; Veena Chowdhury

    2013-01-01

    Background: Autonomic dysfunction may contribute to cardiovascular morbidity in subclinical hypothyroid patients. It is controversial whether the abnormality exists in sympathetic or the parasympathetic function. It is also not known whether the severity of autonomic dysfunction is related to the degree of thyroid deficiency. Design of Study: Prospective case control. Materials and Methods: Autonomic functions based on heart rate (HR) and blood pressure (BP) responses to various maneuvers wer...

  9. Developing a Framework for Semi-Autonomous Control

    OpenAIRE

    Ong, Kai Wei; Seet, Gerald; Sim, Siang Kok

    2008-01-01

    In this paper, the development of a framework for semi-autonomous control using the concept of sharing and trading is discussed. This includes the application of this framework in the implementation of a telerobotics system. The purpose of the semi-autonomous control scheme is to facilitate the human and the robot to cope with different aspects of their interactions. By enabling the human to interact with the robot semi-autonomously, the human can decide the most appropriate scheme for perfor...

  10. A Generic Agent Organisation Framework For Autonomic Systems

    OpenAIRE

    Kota, Ramachandra; Gibbins, Nicholas; Nicholas R Jennings

    2009-01-01

    Autonomic computing is being advocated as a tool for managing large, complex computing systems. Specifically, self-organisation provides a suitable approach for developing such autonomic systems by incorporating self-management and adaptation properties into large-scale distributed systems. To aid in this development, this paper details a generic problem-solving agent organisation framework that can act as a modelling and simulation platform for autonomic systems. Our framework describes a se...

  11. Development of a control system for an autonomous underwater vehicle

    OpenAIRE

    Masmitjà Rusiñol, Ivan; Masmitja Rusinyol, Gerard; González Agudelo, Julián; Shariat Panahi, Shahram; Gomáriz Castro, Spartacus

    2010-01-01

    This work proposes the development of a control system for an autonomous underwater vehicle dedicated to the observation of the oceans. The vehicle, a hybrid between Autonomous Underwater Vehicles (AUVs) and Autonomous Surface Vehicles (ASV), moves on the surface of the sea and makes vertical immersions to obtain profiles of a water column, according to a pre-established plan. The displacement of the vehicle on the surface allows the navigation through GPS and telemetr...

  12. Autonomic Conditions in Tinnitus and Implications for Korean Medicine

    OpenAIRE

    Eun Ji Choi; Younghee Yun; Seungyeon Yoo; Kyu Seok Kim; Jeong-Su Park; Inhwa Choi

    2013-01-01

    Tinnitus patients suffer from not only auditory sensations but also physical, mental, and social difficulties. Even though tinnitus is believed to be associated with the autonomic nervous system, changes in autonomic conditions in tinnitus patients are not receiving much research attention. The aims of this study were to investigate the autonomic condition of tinnitus patients and to consider Korean medicine in the treatment of tinnitus with an evidence-based approach. We performed a retrospe...

  13. The Problems and its Countermeasures of Autonomous Language Learning Center

    Institute of Scientific and Technical Information of China (English)

    NIE Jian-feng

    2014-01-01

    With the popularity of Computer Assisted Language Learning (CALL), autonomous language learning centers have been established in the universities throughout the country. However, there are many problems exist in the practice of the auton-omous language learning center. This essay tries to discuss the problems and its countermeasures with an aim of improving Col-lege English learning and teaching by the example of autonomous language learning center in Nanyang Institute of Technology.

  14. Cultivation of Autonomous Learning Ability of Students Learning College English

    Institute of Scientific and Technical Information of China (English)

    Yang Ruping; Qiu Shifeng

    2014-01-01

    As the mode of college English teaching is gradually transformed from the teacher-centered into the student-centered teaching mode, the cultivation of college English autonomous learning ability has become increasingly important. This paper, starting from the theory of autonomous learning, makes an analysis of current situation of college English teaching and points out the necessity of this ability-cultivation for English learning. In the end, it puts forward several strategies of cultivating the ability of college English autonomous learning.

  15. Path tracking in forest terrain by an autonomous forwarder

    OpenAIRE

    Ringdahl, Ola; Lindroos, Ola; Hellström, Thomas; Bergström, Dan; Athanassiadis, Dimitris; Nordfjell, Tomas

    2011-01-01

    Autonomous navigation in forest terrain, where operation paths are rarely straight or flat and obstacles are common, is challenging. This paper evaluates a system designed to autonomously follow previously demonstrated paths in a forest environment without loading/unloading timber, a pre-step in the development of fully autonomous forwarders. The system consisted of a forwarder equipped with a high-precision global positioning system to measure the vehicle’s heading and position. A gyro was u...

  16. Vertebrogenic autonomic dysfunction—subjective symptons: a prospective study *

    OpenAIRE

    Johnston, R.J.

    1981-01-01

    The autonomic concomitants of cervical pathomechanics (the posterior cervical sympathetic syndrome) have been widely reported. The literature documenting the autonomic manifestations of thoracic and lumbar articular dysfunctions has not been as extensive. The present study attempts to determine the incidence and nosography of vertebrogenic autonomic dysfunction (V.A.D.) in a sample of 250 consecutive back pain subjects. Thirty-nine per cent of all back pain subjects exhibited probable evidenc...

  17. Sharing the road: the economics of autonomous vehicles

    OpenAIRE

    Lamotte, Raphaël; De Palma, André; GEROLIMINIS, Nikolas

    2016-01-01

    Automated cars are likely to change mobility substantially in the coming years. Much research is developed in engineering, about legal and behavioral issues, but the economics of autonomous vehicle remains an open area. In this paper, we consider a single-bottleneck situation, in which the capacity of the freeway is divided between conventional and autonomous vehicles. Users of conventional vehicles freely choose their departure time from home, while users of autonomous vehicles collaborate w...

  18. DE LAS FORMAS Y DE LAS EXPERIENCIAS CAMPESINAS DE LA ESCLAVITUD: CAMPESINOS NEGROS EN RÍO DE JANEIRO, 1840-1890

    Directory of Open Access Journals (Sweden)

    Fl\\u00E1vio Gomes

    2013-01-01

    Full Text Available En este artículo volvemos a abordar las conexiones históricas en la formación de un campesinado negro durante la esclavitud y las primeras décadas de la emancipación. Consideramos que diversas experiencias campesinas- constitución de comunidades de campesinos negros- en Río de Janeiro se constituyeron en los intercambios económicos, culturales y simbólicos de las comunidades de fugitivos ( quilombos y mocambos y las comunidades de senzalas . Desde el punto de vista teórico y metodológico, escudriñar dichos procesos de conexiones históricas nos permite ver las semejanzas y permanencias en los modelos de ocupación agraria y las expectativas de autonomía y acceso a la tierra entre las últimas décadas de la esclavitud y los estudios clásicos.

  19. Las habilidades comunicativas en las carreras de las Ciencias de la Salud

    OpenAIRE

    Juan Francisco Tejera Concepcion; Miriam Iglesias León; Manuel Cortés Cortés; Gisela Bravo López; Norma Mur Villar; Juan Virgilio López Palacio

    2012-01-01

    Fundamento: las habilidades como componentes cognitivo-instrumentales de la actuación del sujeto, han sido ampliamente estudiadas en el ámbito pedagógico para fortalecer la didáctica específica de las Ciencias de la Salud y de esta forma enseñar a los estudiantes a establecer una adecuada comunicación. Objetivo: definir las habilidades comunicativas que pueden ser tratadas mediante el sistema de conocimientos de las asignaturas y las actividades preprofesionalizantes en los estudiantes de las...

  20. Intelligent Autonomous Aerial Vehicles in the National Airspace Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Unmanned aerial systems (UAS) and, in particular, intelligent, autonomous aircraft operating in the National Airspace (NAS) have the potential to significantly...

  1. Security-Enhanced Autonomous Network Management for Space Networking Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Intelligent Automation Inc. (IAI) proposes an innovative Security-Enhanced Autonomous Network Management (SEANM) scheme for reliable communication in space...

  2. Adaptive Supervisory Engine for Autonomous Formation Flying GNC Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Autonomous multiple spacecraft formation flying represents a critical enabling technology for future space missions, including NASA's Space and Earth Science...

  3. The nicotine paradox: effect of smoking on autonomic discrimination.

    Science.gov (United States)

    Lombardo, T W; Epstein, L H

    1986-01-01

    Smoking reduces negative affect while it increases sympathetic nervous system activity. However, theories of emotion predict that increased autonomic arousal should increase rather than reduce negative affect. One explanation for this paradox is that nicotine interferes with perception of autonomic activity. We evaluated the effect of smoking on autonomic activity perception by measuring performance on a heartbeat detection task after a high or low dose of nicotine or not smoking. A group of nonsmokers also completed the task. Results failed to support the hypothesis. In light of previous research, the results suggest EMG perception may be more important to the negative affect reduction phenomenon than perception of autonomic activity. PMID:3739820

  4. Autonomous site selection and instrument positioning for sample acquisition

    Science.gov (United States)

    Shaw, A.; Barnes, D.; Pugh, S.

    analysed to calculate possible long range trajectories [Weisbin 99] for the rover. Provided the rover is given a predefined "ideal rock" definition, the same DEMs can be used to classify rocks in the surrounding area and identify any which meet the ideal rock criteria, meaning that, during long-range traverses potentially scientifically rich rocks would not be missed. The technique can also be used identify the approach trajectory for the arm given the orientation of the rock surface. 1 If several ideal rocks have been identified the rover could then use a rock reachability map to prioritise the rocks for sampling, this would consider: rock classification; the amount of energy required to reach the rock; and the number of instruments that can be placed on the surface. Autonomously identifying ideal rocks and calculating instrument position reduces the rover waiting time and operator input, and increases the scientific return. 1. Shaw A.J. and Barnes D.P., Landmark recognition for localisation and navigation of aerial vehicles. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Las Vegas, October 2003. CD-ROM Proceedings. 2. Weisbin, Charles R. Rodriguez Guillermo, Schenker Paul S., Das Hari, Hayati Samad A., Baumgartner Eric T., Maimone Mark, Nesnas Issa A., Volpe Richard A. Autonomous rover technology for mars sample return, Pages 1-10 of: 1999 International Symposium on Artificial Intelligence, Robotics and Automation in Space, ISAIRAS99. 2

  5. Smartphones Promote Autonomous Learning in ESL Classrooms

    Directory of Open Access Journals (Sweden)

    Viji Ramamuruthy

    2015-10-01

    Full Text Available The rapid development of high-technology has caused new inventions of gadgets for all walks of life regardless age. In this rapidly advancing technology era many individuals possess hi-tech gadgets such as laptops, tablets, iPad, android phones and smart phones. Adult learners in higher learning institution especially are fond of using smart phones. Students become passive in the classrooms as they are glued to their smart phones. This situation triggers the question of whether learning really takes place while the students are too engaged with their smart phones in the ESL classroom. In this context, the following questions are framed to investigate this issue: What type of learning skills are gained by using smartphones in ESL classrooms? Does smartphone use promote the autonomous learning process? To what extent do learners rely on the lecturers in addition to the usage of smartphones? What are the learning satisfactions gained by ESL learners using smartphones? A total of 70 smartphone users in the age range 18 to 26 years participated in this quantitative study. Questionnaires eliciting demographic details of the respondents, learning skills, learning satisfaction, students' perception on teacher's role in the ESL classroom and autonomous learning were distributed to all the randomly chosen samples. The data were then analyzed by using SPSS version 16. The findings revealed that smartphone use boosted learners’ critical thinking, creative thinking, communication and collaboration skills. In fact, learners gain great satisfaction in the learning process through smartphones. Although learners have moved toward autonomous learning, they are still reliant on the teachers to achieve their learning goals.

  6. Maritime Training Serbian Autonomous Vessel Protection Detachment

    Directory of Open Access Journals (Sweden)

    Šoškić Svetislav D.

    2014-06-01

    Full Text Available The crisis in Somalia has caused appearance of piracy at sea in the Gulf of Aden and the Western Indian Ocean. Somali pirates have become a threat to economic security of the world because almost 30 percent of world oil and 20 percent of global trade passes through the Gulf of Aden. Solving the problem of piracy in this part of the world have included international organizations, institutions, military alliances and the states, acting in accordance with international law and UN Security Council resolutions. The European Union will demonstrate the application of a comprehensive approach to solving the problem of piracy at sea and the crisis in Somalia conducting naval operation — EU NAVFOR Atalanta and operation EUTM under the Common Security and Defense Policy. The paper discusses approaches to solving the problem of piracy in the Gulf of Aden and the crisis in Somalia. Also, the paper points to the complexity of the crisis in Somalia and dilemmas correctness principles that are applied to solve the problem piracy at sea. One of goals is protections of vessels of the World Food Programme (WFP delivering food aid to displaced persons in Somalia. Republic of Serbia joined in this mission and trained and sent one a autonomous team in this military operation for protection WFP. This paper consist the problem of modern piracy, particularly in the area of the Horn of Africa became a real threat for the safety of maritime ships and educational process of Serbian Autonomous vessel protection detachment. Serbian Military Academy adopted and developed educational a training program against piracy applying all the provisions and recommendations of the IMO conventions and IMO model courses for Serbian Autonomous vessel protection detachment.

  7. Autonomía Adolescente y Apoyo y Control Parental en Familias Indígenas Mexicanas

    OpenAIRE

    Rosario Esteinou, México.

    2015-01-01

    (analítico): Con base en una encuesta, en este artículo presento un análisis descriptivo de las percepciones de adolescentes indígenas de México, sobre su autonomía y los comportamientos de sus padres y madres en términos del apoyo y control que ellos y ellas ejercen. En particular, analizo si la autonomía alcanzada puede ser asociada a un proceso de separación/desconexión o de separación/conexión con los padres y madres. Este proceso está ligado a los rasgos que guardan los comportamientos d...

  8. La evaluación del desempeño de los servidores públicos de carrera administrativa y el desempeño organizacional de las corporaciones autónomas regionales de Colombia : estudio de caso en la Corporación Autónoma Regional de Caldas CORPOCALDAS = Performance assessment of public servants of career management and organizational performance of regional autonomy corporation Colombia : case study Autonomous Regional Corporation Of Caldas CORPOCALDAS

    OpenAIRE

    Jiménez García, Raúl

    2012-01-01

    Medir el desempeño permite a las organizaciones conocer sus resultados actuales y proyectar sus objetivos en términos de su visión, misión y estrategias, le permite además convertir éstas últimas en acciones concretas, y dar una visión del desempeño del negocio (Kaplan y Norton, 2001). Las prácticas de evaluación del desempeño han sido ampliamente estudiadas en el sector productivo en empresas de carácter privado, como lo presentan los estudios de Álvarez y Calderón, 2006; Dolan, Schul...

  9. Autonomous valve for detection of biopolymer degradation

    DEFF Research Database (Denmark)

    Keller, Stephan Urs; Noeth, Nadine-Nicole; Fetz, Stefanie; Grünefeld, Marco; Geschke, Oliver; Boisen, Anja; Haefliger, D.

    We present a polymer microvalve that allows the detection of biopolymer degradation without the need of external energy. The valve is based on a polymer container filled with a colored marker solution and closed by a thin lid. This structure is covered by a film of poly(L-lactide) and degradation...... of the biopolymer triggers the release of the color which is detected visually. The autonomous valve has potential for the fast testing of biopolymer degradation under various environmental conditions or by specific enzymes....

  10. Topological equivalence of nonlinear autonomous dynamical systems

    International Nuclear Information System (INIS)

    We show in this paper that the autonomous nonlinear dynamical system Σ(A,B,F): x' = Ax+Bu+F(x) is topologically equivalent to the linear dynamical system Σ(A,B,O): x' = Ax+Bu if the projection of A on the complement in Rn of the controllable vectorial subspace is hyperbolic and if lipschitz constant of F is sufficiently small (*) and F(x) = 0 when parallel x parallel is sufficiently large (**). In particular, if Σ(A,B,O) is controllable, it is topologically equivalent to Σ(A,B,F) when it is only that F satisfy (**). (author). 18 refs

  11. A design strategy for autonomous systems

    Science.gov (United States)

    Forster, Pete

    1989-01-01

    Some solutions to crucial issues regarding the competent performance of an autonomously operating robot are identified; namely, that of handling multiple and variable data sources containing overlapping information and maintaining coherent operation while responding adequately to changes in the environment. Support for the ideas developed for the construction of such behavior are extracted from speculations in the study of cognitive psychology, an understanding of the behavior of controlled mechanisms, and the development of behavior-based robots in a few robot research laboratories. The validity of these ideas is supported by some simple simulation experiments in the field of mobile robot navigation and guidance.

  12. A Diversified Investment Strategy Using Autonomous Agents

    Science.gov (United States)

    Barbosa, Rui Pedro; Belo, Orlando

    In a previously published article, we presented an architecture for implementing agents with the ability to trade autonomously in the Forex market. At the core of this architecture is an ensemble of classification and regression models that is used to predict the direction of the price of a currency pair. In this paper, we will describe a diversified investment strategy consisting of five agents which were implemented using that architecture. By simulating trades with 18 months of out-of-sample data, we will demonstrate that data mining models can produce profitable predictions, and that the trading risk can be diminished through investment diversification.

  13. Operating a global network of autonomous observatories

    Czech Academy of Sciences Publication Activity Database

    Kubánek, Petr; Castro-Tirado, A.J.; de Ugarte Postigo, A.; Cunniffe, R.; Prouza, Michael; Štrobl, Jan; van Heerden, H.; Gorosabel, J.; Hudec, René; Yock, P.; Allen, W.H.; Bond, I.; Christie, G.; Guziy, S.; Hanlon, L.; Jelínek, M.; Meehan, S.; Polášek, Cyril; Reglero, V.; Vitale, P.

    Bellingham : SPIE, 2010 - (Radziwill, N.; Bridger, A.), 77400U/1-77400U/12 ISBN 9780819482303. - (Proceedings of the SPIE. 7740). [Software and Cyberinfrastructure for Astronomy. San Diego (US), 27.06.2010-04.07.2010] R&D Projects: GA MŠk ME09052; GA ČR GA205/08/1207 Institutional research plan: CEZ:AV0Z10100502; CEZ:AV0Z10030501 Keywords : autonomous observatory * robotic telescope * telescope network * RTS2 Subject RIV: BF - Elementary Particles and High Energy Physics http://dx.doi.org/10.1117/12.857222

  14. Autonomous Rule Based Robot Navigation In Orchards

    DEFF Research Database (Denmark)

    Andersen, Jens Christian; Ravn, Ole; Andersen, Nils Axel

    2010-01-01

    Orchard navigation using sensor-based localization and exible mission management facilitates successful missions independent of the Global Positioning System (GPS). This is especially important while driving between tight tree rows where the GPS coverage is poor. This paper suggests localization ......, obstacle avoidance, path planning and drive control. The system is tested successfully using a Hako 20 kW tractor during autonomous missions in both cherry and apple orchards with mission length of up to 2.3 km including the headland turns....

  15. ROBERT autonomous navigation robot with artificial vision

    International Nuclear Information System (INIS)

    This work, a joint research between ENEA (the Italian National Agency for Energy, New Technologies and the Environment) and DIGlTAL, presents the layout of the ROBERT project, ROBot with Environmental Recognizing Tools, under development in ENEA laboratories. This project aims at the development of an autonomous mobile vehicle able to navigate in a known indoor environment through the use of artificial vision. The general architecture of the robot is shown together with the data and control flow among the various subsystems. Also the inner structure of the latter complete with the functionalities are given in detail

  16. Navigation and control of an autonomous vehicle

    Energy Technology Data Exchange (ETDEWEB)

    Simon, A.; Soehnitz, I.; Becker, J.C.; Schumacher, W. [Technical Univ. Braunschweig (Germany). Inst. of Control Engineering

    2000-07-01

    This paper describes the fusion of sensor data for the navigation of an autonomous vehicle as well as two lateral control concepts to track the vehicle along a desired path. The fusion of navigation data is based on information provided by multiple object-detecting sensors. The object data is fused to increase the accuracy and to obtain the vehicle's state from the relative movement w.r.t. the objects. The presented lateral control methods are an LQG/H{sub 2}-design and an input-output linearizing algorithm. These control schemes were both implemented on a test vehicle. (orig.)

  17. Autonomous Mission Operations for Sensor Webs

    Science.gov (United States)

    Underbrink, A.; Witt, K.; Stanley, J.; Mandl, D.

    2008-12-01

    We present interim results of a 2005 ROSES AIST project entitled, "Using Intelligent Agents to Form a Sensor Web for Autonomous Mission Operations", or SWAMO. The goal of the SWAMO project is to shift the control of spacecraft missions from a ground-based, centrally controlled architecture to a collaborative, distributed set of intelligent agents. The network of intelligent agents intends to reduce management requirements by utilizing model-based system prediction and autonomic model/agent collaboration. SWAMO agents are distributed throughout the Sensor Web environment, which may include multiple spacecraft, aircraft, ground systems, and ocean systems, as well as manned operations centers. The agents monitor and manage sensor platforms, Earth sensing systems, and Earth sensing models and processes. The SWAMO agents form a Sensor Web of agents via peer-to-peer coordination. Some of the intelligent agents are mobile and able to traverse between on-orbit and ground-based systems. Other agents in the network are responsible for encapsulating system models to perform prediction of future behavior of the modeled subsystems and components to which they are assigned. The software agents use semantic web technologies to enable improved information sharing among the operational entities of the Sensor Web. The semantics include ontological conceptualizations of the Sensor Web environment, plus conceptualizations of the SWAMO agents themselves. By conceptualizations of the agents, we mean knowledge of their state, operational capabilities, current operational capacities, Web Service search and discovery results, agent collaboration rules, etc. The need for ontological conceptualizations over the agents is to enable autonomous and autonomic operations of the Sensor Web. The SWAMO ontology enables automated decision making and responses to the dynamic Sensor Web environment and to end user science requests. The current ontology is compatible with Open Geospatial Consortium (OGC

  18. The Ways of Fostering Student's Autonomous Learning

    Institute of Scientific and Technical Information of China (English)

    赖湲

    2016-01-01

    With the development of science and technology, knowledge is being replaced faster and faster. The students nowadays must be cultivated into lifelong learners to adjust themselves to the times of knowledge explosion. This study is to arouse students to be aware of the importance of autonomy in English learning and to enable them to have assistive attitude toward English learning. After gaining the knowledge of autonomy, this thesis give the whole society, including schools, parents, and students themselves some ways to foster and develop their autonomous learning.

  19. Fault Diagnosis of Autonomous Underwater Vehicles

    Directory of Open Access Journals (Sweden)

    Xiao Liang

    2013-04-01

    Full Text Available In this study, we propose the least disturbance algorithm adding scale factor and shift factor. The dynamic learning ratio can be calculated to minimize the scale factor and shift factor of wavelet function and the variation of net weights and the algorithm improve the stability and the convergence of wavelet neural network. It was applied to build the dynamical model of autonomous underwater vehicles and the residuals are generated by comparing the outputs of the dynamical model with the real state values in the condition of thruster fault. Fault detection rules are distilled by residual analysis to execute thruster fault diagnosis. The results of simulation prove the effectiveness.

  20. Autonomous Observations in Antarctica with AMICA

    CERN Document Server

    Di Rico, Gianluca; Dolci, Mauro; Straniero, Oscar; Valentini, Angelo; Valentini, Gaetano; Di Cianno, Amico; Giuliani, Croce; Magrin, Demetrio; Bonoli, Carlotta; Bortoletto, Favio; D'Alessandro, Maurizio; Corcione, Leonardo; Riva, Alberto

    2010-01-01

    The Antarctic Multiband Infrared Camera (AMICA) is a double channel camera operating in the 2-28 micron infrared domain (KLMNQ bands) that will allow to characterize and exploit the exceptional advantages for Astronomy, expected from Dome C in Antarctica. The development of the camera control system is at its final stage. After the investigation of appropriate solutions against the critical environment, a reliable instrumentation has been developed. It is currently being integrated and tested to ensure the correct execution of automatic operations. Once it will be mounted on the International Robotic Antarctic Infrared Telescope (IRAIT), AMICA and its equipment will contribute to the accomplishment of a fully autonomous observatory.

  1. Developments and challenges for autonomous unmanned vehicles

    CERN Document Server

    Finn, Anthony

    2010-01-01

    It is widely anticipated that autonomous vehicles will have a transformational impact on military forces and will play a key role in many future force structures. As a result, many tasks have already been identified that unmanned systems could undertake more readily than humans. However, for this to occur, such systems will need to be agile, versatile, persistent, reliable, survivable and lethal. This will require many of the vehicles 'cognitive' or higher order functions to be more fully developed, whereas to date only the 'component' or physical functions have been successfully automated and

  2. Visual Navigation of an autonomous drone

    OpenAIRE

    Møst, Pål Moen

    2014-01-01

    In this thesis we have implemented and developed the necessary hardware and software solutions to transform a radio controlled quad copter into an autonomous drone. The main goal for this thesis was to safely land the drone by visual navigation on a given landing spot. To make this possible the we started with the assembly of a radio controlled quad copter from a almost-ready-to-fly kit (ARF) from AeroQuad. We then applied the necessary hardware to the drone by adding a web camera for visual ...

  3. Autonomous Droop Scheme With Reduced Generation Cost

    DEFF Research Database (Denmark)

    Nutkani, Inam Ullah; Loh, Poh Chiang; Wang, Peng;

    2014-01-01

    . This objective might, however, not suit microgrids well since DGs are usually of different types, unlike synchronous generators. Other factors like cost, efficiency, and emission penalty of each DG at different loading must be considered since they contribute directly to the total generation cost (TGC......) of the microgrid. To reduce this TGC without relying on fast communication links, an autonomous droop scheme is proposed here, whose resulting power sharing is decided by the individual DG generation costs. Comparing it with the traditional scheme, the proposed scheme retains its simplicity and it is hence more...

  4. Information Engineering in Autonomous Robot Software

    OpenAIRE

    Ziafati, P.

    2015-01-01

    In order to engage and help in our daily life, autonomous robots are to operate in dynamic and unstructured environments and interact with people. As the robot's environment and its behaviour are getting more complex, so are the robot's software and the knowledge that the robot needs to carry out its operations. In collaborating with a human to bake a cake, for instance, the robot needs a large number of components to perceive and manipulate the objects and to communicate and coordinate the t...

  5. Microscale autonomous sensor and communications module

    Science.gov (United States)

    Okandan, Murat; Nielson, Gregory N

    2014-03-25

    Various technologies pertaining to a microscale autonomous sensor and communications module are described herein. Such a module includes a sensor that generates a sensor signal that is indicative of an environmental parameter. An integrated circuit receives the sensor signal and generates an output signal based at least in part upon the sensor signal. An optical emitter receives the output signal and generates an optical signal as a function of the output signal. An energy storage device is configured to provide power to at least the integrated circuit and the optical emitter, and wherein the module has a relatively small diameter and thickness.

  6. Physics Simulation Software for Autonomous Propellant Loading and Gas House Autonomous System Monitoring

    Science.gov (United States)

    Regalado Reyes, Bjorn Constant

    2015-01-01

    1. Kennedy Space Center (KSC) is developing a mobile launching system with autonomous propellant loading capabilities for liquid-fueled rockets. An autonomous system will be responsible for monitoring and controlling the storage, loading and transferring of cryogenic propellants. The Physics Simulation Software will reproduce the sensor data seen during the delivery of cryogenic fluids including valve positions, pressures, temperatures and flow rates. The simulator will provide insight into the functionality of the propellant systems and demonstrate the effects of potential faults. This will provide verification of the communications protocols and the autonomous system control. 2. The High Pressure Gas Facility (HPGF) stores and distributes hydrogen, nitrogen, helium and high pressure air. The hydrogen and nitrogen are stored in cryogenic liquid state. The cryogenic fluids pose several hazards to operators and the storage and transfer equipment. Constant monitoring of pressures, temperatures and flow rates are required in order to maintain the safety of personnel and equipment during the handling and storage of these commodities. The Gas House Autonomous System Monitoring software will be responsible for constantly observing and recording sensor data, identifying and predicting faults and relaying hazard and operational information to the operators.

  7. Las telenovelas juveniles mexicanas y las adolescentas obesas

    OpenAIRE

    Tania Meza

    2006-01-01

    Esta investigación analiza la opresión por cuerpo (obesidad) a la que las mujeres son sometidas dentro del sistema patriarcal durante la adolescencia, específicamente a través de la representación televisiva que de las jóvenes gordas se hace en la telenovela juvenil mexicana. Los enormes niveles de audiencia que poseen las telenovelas en nuestro país hace indispensable, para los estudios de género desde las ciencias dela comunicación, estudiar el papel de las mujeres en dichas teleseries. En ...

  8. Las TIC y las culturas minoritarias en un mundo global

    OpenAIRE

    Ovide, Evaristo

    2008-01-01

    Las culturas minoritarias, sus lenguas y tradiciones se vuelven más minoritarias y su aliento vital se debilita a medida que la globalización las sitúa dentro de un contexto mucho más amplio. La aparición de las Nuevas Tecnologías (NN.TT.) eInternet como base de las mismas ha supuesto una nueva discriminación entre los que tienen acceso a ellas y los que no. Las culturas minoritarias lo son por haber sido doblegadas por otra dominante y por ello, a menudo padecen males más acuciantes que la p...

  9. Las Violencias contra las Mujeres en una Sociedad en Guerra

    OpenAIRE

    Sánchez Gómez, Olga Amparo

    2008-01-01

    Las violencias contra las mujeres exceden los acontecimientos violentos, y abarcan su producción y reproducción como fenómeno social y discursivo. Los hechos violentos y los discursos sobre la violencia aparecen entrelazados, especialmente si se piensa en papel que juega la cultura patriarcal en el desarrollo, perpetuación y validación de las violencias contra las mujeres. “A las mujeres nos violan, nos asaltan y nos golpean, nos ultrajan, nos humillan, nos deshumanizan, nos manosean, nos ase...

  10. Autoridades de transporte terrestre de pasajeros en el contexto de la conurbación: una necesaria visión regional de la actividad en el ejercicio de las competencias

    OpenAIRE

    Andrés Felipe López Gómez

    2015-01-01

    En este documento, conscientes de que las necesidades de movilización de las personas solo pueden ser adecuadamente satisfechas en una concepción integrada de los servicios de transporte –la que conlleva una visión regional de la actividad que no desconozca la autonomía de las entidades territoriales–, nos aproximamos a las competencias que para la organización del transporte han sido dispuestas en estos contextos. En esta tarea, luego de un breve recuento de las implicaciones del principio d...

  11. Analisis sobre las obligaciones

    OpenAIRE

    Parra Avila, Elliot

    2013-01-01

    Los lenguajes ordinarios presentan dificultades de interpretación cuando son usados para formular y resolver problemas filosoficos. Estos inconvenientes intentaron ser solucionados desde las funciones propositivas (Russell) y los lenguajes artificiales (Carnap). Como respuesta a estas tesis surge la escuela de la filosofia del lenguaje ordinario que sostiene 1) la confianza en el lenguaje claro y siple 2) la ideificacion del abuso del lenguaje como origen de todos los problemas filosoficos 3)...

  12. Welcome to Theoretical Las Vegas

    OpenAIRE

    Al, Stefan

    2009-01-01

    Las Vegas, a city often theorized as the ultimate spectacular city, has a commensurate history of spectacular theories. This essay explores the connections between urban theory and spectacle through etymology, a brief history of the literature on Las Vegas, and an encounter between a Las Vegas urban planner and a theorist.

  13. Refugiados de las pandillas centroamericanas

    OpenAIRE

    Kennedy, Elizabeth G.

    2013-01-01

    El Salvador, Guatemala y Honduras se encuentran entre las naciones más frágiles del mundo, sin embargo, son ampliamente ignoradas por las agencias de refugiados que subestiman los abusos y poderes de control de las organizaciones criminales transnacionales, mientras sobrestiman la capacidad y voluntad de los gobiernos nacionales de proteger a sus ciudadanos.

  14. Autonomía y ajuste académico : un estudio con estudiantes portugueses de primer año

    OpenAIRE

    Ana Paula Soares; M. Adelina Guisande; Almeida, Leandro S.

    2007-01-01

    Los niveles de autonomía psicológica de los alumnos desempeñan un papel importante en su ajuste a las presiones y desafíos de la vida universitaria. En este sentido, el presente estudio analiza las relaciones entre los niveles de autonomía de los estudiantes en su entrada en la Enseñanza Superior y la calidad de su ajuste académico al final del primer año. Se aplicó el Iowa Developing Autonomy Inventory (IDAI; Hood y Jackson, 1983) en el inicio del año lectivo, y el Questionário de Vivências ...

  15. Las telenovelas juveniles mexicanas y las adolescentas obesas

    Directory of Open Access Journals (Sweden)

    Tania Meza

    2006-01-01

    Full Text Available Esta investigación analiza la opresión por cuerpo (obesidad a la que las mujeres son sometidas dentro del sistema patriarcal durante la adolescencia, específicamente a través de la representación televisiva que de las jóvenes gordas se hace en la telenovela juvenil mexicana. Los enormes niveles de audiencia que poseen las telenovelas en nuestro país hace indispensable, para los estudios de género desde las ciencias dela comunicación, estudiar el papel de las mujeres en dichas teleseries. En este análisis se pretende mostrar la triple marginación a la que son sometidas las adolescentes obesas en las telenovelas juveniles mexicanas: por ser mujeres, por ser jóvenes y por ser gordas.

  16. View of Mexican family members on the autonomy of adolescents and adults with intellectual disability Puntos de vista de familiares de adolescentes y adultos mexicanos con discapacidad intelectual acerca de su autonomía

    Directory of Open Access Journals (Sweden)

    Betania Allen-Leigh

    2008-01-01

    Full Text Available This study aims to describe the ways in which Mexican adolescents and adults with intellectual disability exercise autonomy. Two focus groups were carried out with family members who are the legal guardians of people with intellectual disability who have received independent living training at the Center for Integral Training and Development (CADI, per its abbreviation in Spansh. Focus group transcripts were analyzed with codes defined a priori, based on an existing theoretical framework on autonomy and quality of life among intellectually disabled persons. Autonomy is exercised by the intellectually disabled in the personal, social, sexual and economic spheres of life. Empowered autonomy implies that the person is taught the necessary skills and then allowed to act upon his or her own interests. Negotiated autonomy includes guidance, explanation and negotiation; it constitutes a learning process. Interpreted autonomy is the most limited type described, and implies protection, interpretation and may involve decision-making by others. These types of autonomy constitute a complex phenomenon and the divisions between them are indistinct.Este estudio busca describir las maneras en que jóvenes y adultos mexicanos con discapacidad intelectual ejercen la autonomía. Dos grupos focales se llevaron a cabo con familiares de personas con discapacidad intelectual quienes han recibido capacitación para la vida independiente en el Centro de Capacitación y Desarrollo Integral, CADI. Se analizaron las transcripciones con códigos definidos a priori, basados en un marco teórico preexistente sobre autonomía y calidad de vida entre personas con discapacidad intelectual. Las personas con discapacidad intelectual ejercen autonomía en diversos ámbitos: personal, social, sexual y económico. La autonomía empoderada se da cuando se le enseña a la persona las habilidades necesarias y luego se le permite actuar con base en sus propios intereses. La autonom

  17. Tributos negociados: Las “questie”/subsidios de las villas catalanas en la primera mitad del siglo XIV

    Directory of Open Access Journals (Sweden)

    Sánchez Martínez, Manuel

    2008-06-01

    Full Text Available This article examines the questie/ subsidies requested by the Catalan- Aragonese monarchs from the towns of the royal domain of Catalonia between 1309 and 1359. From the point of view of the Crown, the importance of these tributes lies in the fact that they were the monarchy’s main way of financing prior to the transcendental changes in taxation of the decades of 1350 and 1360. And, from the point of view of the towns, the necessity to negotiate with the king and his officials, year after year, the amount of the questie/subsidies due in every small city, contributed to the increasing financial autonomy of the municipalities and, beyond that, to the social and institutional coordination of that community.

    En este artículo se estudian las questie/subsidios pedidas por los monarcas catalanoaragoneses a las villas de realengo de Cataluña entre 1309 y 1359. Desde el punto de vista de la Corona, la importancia de estos tributos radica en que fueron la principal forma de financiación de la monarquía antes de las trascendentales transformaciones fiscales de las décadas de 1350 y 1360. Y, desde la perspectiva de las villas, la necesidad de negociar con el rey y sus oficiales, año por año, el volumen de las questie/subsidios a pagar por cada pequeña ciudad contribuyó a la creciente autonomía financiera de los municipios y, más allá, a la vertebración social e institucional de la propia comunidad.

  18. Autonomous Space Processor for Orbital Debris (ASPOD)

    Science.gov (United States)

    Ramohalli, Kumar; Mitchell, Dominique; Taft, Brett

    1992-01-01

    A project in the Advanced Design Program at the University of Arizona is described. The project is named the Autonomous Space Processor for Orbital Debris (ASPOD) and is a Universities Space Research Association (USRA) sponsored design project. The development of ASPOD and the students' abilities in designing and building a prototype spacecraft are the ultimate goals of this project. This year's focus entailed the development of a secondary robotic arm and end-effector to work in tandem with an existent arm in the removal of orbital debris. The new arm features the introduction of composite materials and a linear drive system, thus producing a light-weight and more accurate prototype. The main characteristic of the end-effector design is that it incorporates all of the motors and gearing internally, thus not subjecting them to the harsh space environment. Furthermore, the arm and the end-effector are automated by a control system with positional feedback. This system is composed of magnetic and optical encoders connected to a 486 PC via two servo-motor controller cards. Programming a series of basic routines and sub-routines allowed the ASPOD prototype to become more autonomous. The new system is expected to perform specified tasks with a positional accuracy of 0.5 cm.

  19. Security-Enhanced Autonomous Network Management

    Science.gov (United States)

    Zeng, Hui

    2015-01-01

    Ensuring reliable communication in next-generation space networks requires a novel network management system to support greater levels of autonomy and greater awareness of the environment and assets. Intelligent Automation, Inc., has developed a security-enhanced autonomous network management (SEANM) approach for space networks through cross-layer negotiation and network monitoring, analysis, and adaptation. The underlying technology is bundle-based delay/disruption-tolerant networking (DTN). The SEANM scheme allows a system to adaptively reconfigure its network elements based on awareness of network conditions, policies, and mission requirements. Although SEANM is generically applicable to any radio network, for validation purposes it has been prototyped and evaluated on two specific networks: a commercial off-the-shelf hardware test-bed using Institute of Electrical Engineers (IEEE) 802.11 Wi-Fi devices and a military hardware test-bed using AN/PRC-154 Rifleman Radio platforms. Testing has demonstrated that SEANM provides autonomous network management resulting in reliable communications in delay/disruptive-prone environments.

  20. File Transfer Algorithm for Autonomous Decentralized System

    Institute of Scientific and Technical Information of China (English)

    GUI Xun; TAN Yong-dong; Qian Qing-quan

    2008-01-01

    A file transfer algorithm based on ADP (autonomous decentralized protocol) was proposed to solve the problem that the ADS (autonomous decentralized system) middleware (NeXUS/Dlink) lacks of file transfer functions for Windows. The algorithm realizes the peer-to-peer file transfer, one-to-N inquiry/multi-response file transfer and one-to-N file distribution in the same data field based on communication patterns provided by the ADP. The peer-to-peer file transfer is implemented through a peer-to-peer communication path, one-to-N inquiry/multi-response file transfer and one-to-N file distribution are implemented through multicast commtmieation. In this algorithm, a file to be transferred is named with a GUID ( global unique identification), every data packet is marked with a sequence number, and file-receiving in parallel is implemented by caching DPOs (data processing objects) and multithread technologies. The algorithm is applied in a simulation system of the decentralized control platform, and the test results and long time stable mrming prove the feasibility of the algorithm.

  1. Mobile autonomous robot for radiological surveys

    International Nuclear Information System (INIS)

    The robotics development group at the Savannah River Laboratory (SRL) is developing a mobile autonomous robot that performs radiological surveys of potentially contaminated floors. The robot is called SIMON, which stands for Semi-Intelligent Mobile Observing Navigator. Certain areas of SRL are classified as radiologically controlled areas (RCAs). In an RCA, radioactive materials are frequently handled by workers, and thus, the potential for contamination is ever present. Current methods used for floor radiological surveying includes labor-intensive manual scanning or random smearing of certain floor locations. An autonomous robot such as SIMON performs the surveying task in a much more efficient manner and will track down contamination before it is contacted by humans. SIMON scans floors at a speed of 1 in./s and stops and alarms upon encountering contamination. Its environment is well defined, consisting of smooth building floors with wide corridors. The kind of contaminations that SIMON is capable of detecting are alpha and beta-gamma. The contamination levels of interest are low to moderate

  2. Computer vision for autonomous robotics in space

    Science.gov (United States)

    Wong, Andrew K. C.

    1993-08-01

    This paper presents a computer vision system being developed at the Pattern Analysis and Machine Intelligence (PAMI) Lab of the University of Waterloo and at the Vision, Intelligence and Robotics Technologies Corporation (VIRTEK) in support of the Canadian Space Autonomous Robotics Project. This system was originally developed for flexible manufacturing and guidance of autonomous roving vehicles. In the last few years, it has been engineered to support the operations of the Mobile Service System (MSS) (or its equivalence) for the Space Station Project. In the near term, this vision system will provide vision capability for the recognition, location and tracking of payloads as well as for relating the spatial information to the manipulator for capturing, manipulating and berthing payloads. In the long term, it will serve in the role of inspection, surveillance and servicing of the Station. Its technologies will be continually expanded and upgraded to meet the demand as the needs of the Space Station evolve and grow. Its spin-off technologies will benefit the industrial sectors as well.

  3. The MAP Autonomous Mission Control System

    Science.gov (United States)

    Breed, Juile; Coyle, Steven; Blahut, Kevin; Dent, Carolyn; Shendock, Robert; Rowe, Roger

    2000-01-01

    The Microwave Anisotropy Probe (MAP) mission is the second mission in NASA's Office of Space Science low-cost, Medium-class Explorers (MIDEX) program. The Explorers Program is designed to accomplish frequent, low cost, high quality space science investigations utilizing innovative, streamlined, efficient management, design and operations approaches. The MAP spacecraft will produce an accurate full-sky map of the cosmic microwave background temperature fluctuations with high sensitivity and angular resolution. The MAP spacecraft is planned for launch in early 2001, and will be staffed by only single-shift operations. During the rest of the time the spacecraft must be operated autonomously, with personnel available only on an on-call basis. Four (4) innovations will work cooperatively to enable a significant reduction in operations costs for the MAP spacecraft. First, the use of a common ground system for Spacecraft Integration and Test (I&T) as well as Operations. Second, the use of Finite State Modeling for intelligent autonomy. Third, the integration of a graphical planning engine to drive the autonomous systems without an intermediate manual step. And fourth, the ability for distributed operations via Web and pager access.

  4. Verification of Autonomous Systems for Space Applications

    Science.gov (United States)

    Brat, G.; Denney, E.; Giannakopoulou, D.; Frank, J.; Jonsson, A.

    2006-01-01

    Autonomous software, especially if it is based on model, can play an important role in future space applications. For example, it can help streamline ground operations, or, assist in autonomous rendezvous and docking operations, or even, help recover from problems (e.g., planners can be used to explore the space of recovery actions for a power subsystem and implement a solution without (or with minimal) human intervention). In general, the exploration capabilities of model-based systems give them great flexibility. Unfortunately, it also makes them unpredictable to our human eyes, both in terms of their execution and their verification. The traditional verification techniques are inadequate for these systems since they are mostly based on testing, which implies a very limited exploration of their behavioral space. In our work, we explore how advanced V&V techniques, such as static analysis, model checking, and compositional verification, can be used to gain trust in model-based systems. We also describe how synthesis can be used in the context of system reconfiguration and in the context of verification.

  5. Nutritional stimulation of the autonomic nervous system

    Institute of Scientific and Technical Information of China (English)

    Misha DP Luyer; Quirine Habes; Richard van Hak; Wim Buurman

    2011-01-01

    Disturbance of the inflammatory response in the gut is important in several clinical diseases ranging from inflammatory bowel disease to postoperative ileus. Several feedback mechanisms exist that control the inflammatory cascade and avoid collateral damage. In the gastrointestinal tract, it is of particular importance to control the immune response to maintain the balance that allows dietary uptake and utilization of nutrients on one hand, while preventing invasion of bacteria and toxins on the other hand. The process of digestion and absorption of nutrients requires a relative hyporesponsiveness of the immune cells in the gut to luminal contents which is not yet fully understood. Recently, the autonomic nervous system has been identified as an important pathway to control local and systemic inflammation and gut barrier integrity. Activation of the pathway is possible via electrical or via pharmacological interventions, but is also achieved in a physiological manner by ingestion of dietary lipids. Administration of dietary lipids has been shown to be very effective in reducing the inflammatory cascade and maintaining intestinal barrier integrity in several experimental studies. This beneficial effect of nutrition on the inflammatory inflammatory response and intestinal barrier integrity opens new therapeutic opportunities for treatment of certain gastrointestinal disorders. Furthermore, this neural feedback mechanism provides more insight in the relative hyporesponsiveness of the immune cells in the gut. Here, we will discuss the regulatory function of the autonomic nervous system on the inflammatory response and gut barrier function and the potential benefit in a clinical setting.

  6. AUTONOMIC HTML INTERFACE GENERATOR FOR WEB APPLICATIONS

    Directory of Open Access Journals (Sweden)

    Youssef Bassil

    2012-02-01

    Full Text Available Recent advances in computing systems have led to a new digital era in which every area of life is nearlyinterrelated with information technology. However, with the trend towards large-scale IT systems, a newchallenge has emerged. The complexity of IT systems is becoming an obstacle that hampers themanageability, operability, and maintainability of modern computing infrastructures. Autonomiccomputing popped up to provide an answer to these ever-growing pitfalls. Fundamentally, autonomicsystems are self-configuring, self-healing, self-optimizing, and self-protecting; hence, they can automate allcomplex IT processes without human intervention. This paper proposes an autonomic HTML web-interfacegenerator based on XML Schema and Style Sheet specifications for self-configuring graphical userinterfaces of web applications. The goal of this autonomic generator is to automate the process ofcustomizing GUI web-interfaces according to the ever-changing business rules, policies, and operatingenvironment with the least IT labor involvement. The conducted experiments showed a successfulautomation of web interfaces customization that dynamically self-adapts to keep with the always-changingbusiness requirements. Future research can improve upon the proposed solution so that it supports the selfconfiguringof not only web applications but also desktop applications.

  7. Autonomous dielectric elastomer generator using electret

    Science.gov (United States)

    Vu-Cong, T.; Jean-Mistral, C.; Sylvestre, A.

    2013-04-01

    Dielectric elastomers can work as a variable capacitor to convert mechanical energy such as human motion into electrical energy. Nevertheless, scavengers based on dielectric elastomers require a high voltage source to polarize them, which constitutes the major disadvantage of these transducers. We propose here to combine dielectric elastomer with an electret, providing a quasi-permanent potential, thus replacing the high voltage supply. Our new scavenger is fully autonomous, soft, lightweight and low cost. Our structure is made of a dielectric elastomer (Polypower from Danfoss) and an electret developing a potential of -1000V (Teflon from Dupont). The transducer is designed specifically to scavenge energy from human motion. Thus, it works on pure-shear mode with maximum strain of about 50% and it is textured in 3D form because electret is not deformable. The shape of the hybrid structure is critical to insure huge capacitance variation and thus higher scavenged energy. We present in this paper our process for the optimization of the 3D shape that leads us to the developpment and characterization of our first prototype. From an appropriate electromechanical analytical model, an energy density of about 1.48mJ.g-1 is expected on an optimal electrical load. Our new autonomous dielectric generator can produce about 0.55mJ.g-1 on a resistive load, and can further be improved by enhancing the performance of dielectric elastomer such as dielectric permittivity or by increasing the electret potential.

  8. Sensor study for high speed autonomous operations

    Science.gov (United States)

    Schneider, Anne; La Celle, Zachary; Lacaze, Alberto; Murphy, Karl; Del Giorno, Mark; Close, Ryan

    2015-06-01

    As robotic ground systems advance in capabilities and begin to fulfill new roles in both civilian and military life, the limitation of slow operational speed has become a hindrance to the wide-spread adoption of these systems. For example, military convoys are reluctant to employ autonomous vehicles when these systems slow their movement from 60 miles per hour down to 40. However, these autonomous systems must operate at these lower speeds due to the limitations of the sensors they employ. Robotic Research, with its extensive experience in ground autonomy and associated problems therein, in conjunction with CERDEC/Night Vision and Electronic Sensors Directorate (NVESD), has performed a study to specify system and detection requirements; determined how current autonomy sensors perform in various scenarios; and analyzed how sensors should be employed to increase operational speeds of ground vehicles. The sensors evaluated in this study include the state of the art in LADAR/LIDAR, Radar, Electro-Optical, and Infrared sensors, and have been analyzed at high speeds to study their effectiveness in detecting and accounting for obstacles and other perception challenges. By creating a common set of testing benchmarks, and by testing in a wide range of real-world conditions, Robotic Research has evaluated where sensors can be successfully employed today; where sensors fall short; and which technologies should be examined and developed further. This study is the first step to achieve the overarching goal of doubling ground vehicle speeds on any given terrain.

  9. Kinodynamic Motion Planning for Autonomous Vehicles

    Directory of Open Access Journals (Sweden)

    Jiwung Choi

    2014-06-01

    Full Text Available This article proposes a computationally effective motion planning algorithm for autonomous ground vehicles operating in a semi-structured environment with a mission specified by waypoints, corridor widths and obstacles. The algorithm switches between two kinds of planners, (i static planners and (ii moving obstacle avoidance manoeuvre planners, depending on the mobility of any detected obstacles. While the first is broken down into a path planner and a controller, the second generates a sequence of controls without global path planning. Each subsystem is implemented as follows. The path planner produces an optimal piecewise linear path by applying a variant of cell decomposition and dynamic programming. The piecewise linear path is smoothed by Bézier curves such that the maximum curvatures of the curves are minimized. The controller calculates the highest allowable velocity profile along the path, consistent with the limits on both tangential and radial acceleration and the steering command for the vehicle to track the trajectory using a pure pursuit method. The moving obstacle avoidance manoeuvre produces a sequence of time-optimal local velocities, by minimizing the cost as determined by the safety of the current velocity against obstacles in the velocity obstacle paradigm and the deviation of the current velocity relative to the desired velocity, to satisfy the waypoint constraint. The algorithms are shown to be robust and computationally efficient, and to demonstrate a viable methodology for autonomous vehicle control in the presence of unknown obstacles.

  10. Quantifying Emergent Behavior of Autonomous Robots

    Science.gov (United States)

    Martius, Georg; Olbrich, Eckehard

    2015-10-01

    Quantifying behaviors of robots which were generated autonomously from task-independent objective functions is an important prerequisite for objective comparisons of algorithms and movements of animals. The temporal sequence of such a behavior can be considered as a time series and hence complexity measures developed for time series are natural candidates for its quantification. The predictive information and the excess entropy are such complexity measures. They measure the amount of information the past contains about the future and thus quantify the nonrandom structure in the temporal sequence. However, when using these measures for systems with continuous states one has to deal with the fact that their values will depend on the resolution with which the systems states are observed. For deterministic systems both measures will diverge with increasing resolution. We therefore propose a new decomposition of the excess entropy in resolution dependent and resolution independent parts and discuss how they depend on the dimensionality of the dynamics, correlations and the noise level. For the practical estimation we propose to use estimates based on the correlation integral instead of the direct estimation of the mutual information using the algorithm by Kraskov et al. (2004) which is based on next neighbor statistics because the latter allows less control of the scale dependencies. Using our algorithm we are able to show how autonomous learning generates behavior of increasing complexity with increasing learning duration.

  11. Autonomous Navigation by a Mobile Robot

    Science.gov (United States)

    Huntsberger, Terrance; Aghazarian, Hrand

    2005-01-01

    ROAMAN is a computer program for autonomous navigation of a mobile robot on a long (as much as hundreds of meters) traversal of terrain. Developed for use aboard a robotic vehicle (rover) exploring the surface of a remote planet, ROAMAN could also be adapted to similar use on terrestrial mobile robots. ROAMAN implements a combination of algorithms for (1) long-range path planning based on images acquired by mast-mounted, wide-baseline stereoscopic cameras, and (2) local path planning based on images acquired by body-mounted, narrow-baseline stereoscopic cameras. The long-range path-planning algorithm autonomously generates a series of waypoints that are passed to the local path-planning algorithm, which plans obstacle-avoiding legs between the waypoints. Both the long- and short-range algorithms use an occupancy-grid representation in computations to detect obstacles and plan paths. Maps that are maintained by the long- and short-range portions of the software are not shared because substantial localization errors can accumulate during any long traverse. ROAMAN is not guaranteed to generate an optimal shortest path, but does maintain the safety of the rover.

  12. Quantifying Emergent Behavior of Autonomous Robots

    Directory of Open Access Journals (Sweden)

    Georg Martius

    2015-10-01

    Full Text Available Quantifying behaviors of robots which were generated autonomously from task-independent objective functions is an important prerequisite for objective comparisons of algorithms and movements of animals. The temporal sequence of such a behavior can be considered as a time series and hence complexity measures developed for time series are natural candidates for its quantification. The predictive information and the excess entropy are such complexity measures. They measure the amount of information the past contains about the future and thus quantify the nonrandom structure in the temporal sequence. However, when using these measures for systems with continuous states one has to deal with the fact that their values will depend on the resolution with which the systems states are observed. For deterministic systems both measures will diverge with increasing resolution. We therefore propose a new decomposition of the excess entropy in resolution dependent and resolution independent parts and discuss how they depend on the dimensionality of the dynamics, correlations and the noise level. For the practical estimation we propose to use estimates based on the correlation integral instead of the direct estimation of the mutual information based on next neighbor statistics because the latter allows less control of the scale dependencies. Using our algorithm we are able to show how autonomous learning generates behavior of increasing complexity with increasing learning duration.

  13. Small Autonomous Aircraft Servo Health Monitoring

    Science.gov (United States)

    Quintero, Steven

    2008-01-01

    Small air vehicles offer challenging power, weight, and volume constraints when considering implementation of system health monitoring technologies. In order to develop a testbed for monitoring the health and integrity of control surface servos and linkages, the Autonomous Aircraft Servo Health Monitoring system has been designed for small Uninhabited Aerial Vehicle (UAV) platforms to detect problematic behavior from servos and the air craft structures they control, This system will serve to verify the structural integrity of an aircraft's servos and linkages and thereby, through early detection of a problematic situation, minimize the chances of an aircraft accident. Embry-Riddle Aeronautical University's rotary-winged UAV has an Airborne Power management unit that is responsible for regulating, distributing, and monitoring the power supplied to the UAV's avionics. The current sensing technology utilized by the Airborne Power Management system is also the basis for the Servo Health system. The Servo Health system measures the current draw of the servos while the servos are in Motion in order to quantify the servo health. During a preflight check, deviations from a known baseline behavior can be logged and their causes found upon closer inspection of the aircraft. The erratic behavior nay include binding as a result of dirt buildup or backlash caused by looseness in the mechanical linkages. Moreover, the Servo Health system will allow elusive problems to be identified and preventative measures taken to avoid unnecessary hazardous conditions in small autonomous aircraft.

  14. Preservar las empresas de familia

    OpenAIRE

    José Vargas Caicedo

    2005-01-01

    El ciclo de vida de las empresas de familia es usualmente corto por muchas razones. Entre las más frecuentes podemos considerar la marcada ignorancia acerca de los mecanismos adecuados para la solución de los conflictos, y este es el más común de los temas. La lucha por el poder, por la propiedad y la competencia en el cuidado de las realizaciones personales genera fricciones frecuentes entre los miembros de una familia. Las actitudes y las respuestas de tipo emocional que por lo general se d...

  15. Hacia la autonomía del estudiante de lenguas en el ámbito universitario a través del uso de blogs y wikis

    Directory of Open Access Journals (Sweden)

    Mariana González Boluda

    2012-01-01

    Full Text Available Este trabajo pretende describir el potencial de los blogs y wikis como herramientas para fomentar la autonomía en el aprendizaje en el contexto de la enseñanza universitaria. Se relata una experiencia de implementación de estos recursos en un contexto tradicional de enseñanza y aprendizaje. Como punto de partida se propone un acercamiento a la cultura de aprendizaje de un grupo de 40 estudiantes de español de Turismo en la Universidad de Tecnología de Jamaica a través de un análisis de sus creencias y actitudes más comunes sobre el proceso de aprendizaje de una lengua extranjera, así como de las creencias de sus profesores con relación a las responsabilidades y habilidades de los estudiantes en el aprendizaje autónomo. Tras analizar limitaciones y resistencias iniciales en el camino hacia la autonomía en este contexto, se explica una experiencia didáctica para fomentar la autonomía de los estudiantes basada en el uso de blogs y wikis. El proceso gradual de adquisición de autonomía dependerá no sólo de la interacción del estudiante con el contenido de los blogs y wikis, sino sobre todo de las interacciones con todos los participantes, a través de un intercambio espontáneo donde se diluyen las fronteras espaciotemporales y se fomenta un aprendizaje significativo, colaborativo y constructivo.

  16. Aportaciones de la educación física al desarrollo de la competencia básica: autonomía e iniciativa personal

    OpenAIRE

    Cañabate Ortiz, Dolors; Zagalaz Sánchez, Ma Luisa

    2011-01-01

    El objetivo de este artículo es enfrentarse al reto de responder a la necesidad de concretar aprendizajes de acuerdo con el nuevo currículo basado en competencias en el área de educación física (EF). Partiendo de este compromiso, presentamos una propuesta respecto a las aportaciones que la EF puede y debe aportar al desarrollo de la competencia de autonomía e iniciativa personal. Para ello, en la primera parte se indican las capacidades relacionadas con la competencia que se pretende desarrol...

  17. La autonomía de la voluntad y el pluralismo jurídico en nuestros días

    OpenAIRE

    Perrin Jean-François

    2005-01-01

    La "autonomía de la voluntad", esa hermosa matriz del derecho privado liberal clásico ("quien dice contractual, dice justo"), es actualmente un instrumento importante de regulación de las relaciones sociales. La observación del funcionamiento real - efectivo - de esta herramienta legal, revela de forma paradigmática la identidad del individuo social post-moderno, cuya libertad es a la vez inmensa e irrisoria, fuente de poder ilimitado y de sujeción servil a las directivas de organizaciones, p...

  18. Autonomía y responsabilidad como valores clave para la elaboración de normas de convivencia en la ESO

    OpenAIRE

    Cruz Pérez Pérez; Victoria Vázquez Verdera; Inmaculada López-Francés

    2012-01-01

    Algunas de las cuestiones que se plantean en el artículo son las siguientes: ¿Son los alumnos capaces de organizar el comportamiento y la convivencia en el aula? ¿Están capacitados para elaborar sus propias normas? o ¿Solamente se trata de un planteamiento teórico que resulta inviable de llevar a la práctica? En todo caso, ¿Qué nivel de responsabilidad y autonomía pueden asumir en el funcionamiento del aula?   El aprendizaje de normas en el aula constituye una experiencia real, muy próxim...

  19. Autonomía y responsabilidad como valores clave para la elaboración de normas de convivencia en la ESO

    OpenAIRE

    Pérez Pérez, Cruz; Vázquez Verdera, Victoria; Inmaculada LÓPEZ-FRANCÉS

    2012-01-01

    Algunas de las cuestiones que se plantean en el artículo son las siguientes: ¿Son los alumnos capaces de organizar el comportamiento y la convivencia en el aula? ¿Están capacitados para elaborar sus propias normas? o ¿Solamente se trata de un planteamiento teórico que resulta inviable de llevar a la práctica? En todo caso, ¿Qué nivel de responsabilidad y autonomía pueden asumir en el funcionamiento del aula? El aprendizaje de normas en el aula constituye una experiencia real, muy próxima...

  20. Nuevas perspectivas bioéticas: Autonomía relacional

    Directory of Open Access Journals (Sweden)

    Delgado Rodríguez, Janet

    2012-04-01

    Full Text Available El concepto de autonomía en el que se ha basado tradicionalmente la Bioética proviene de la teoría liberal, y se articula a partir de un sujeto teórico que poco tiene que ver con las personas. Por ello, en este artículo se plantea la necesidad de revisar y reformular el concepto de autonomía para la Bioética. ¿Hay alternativas al modelo liberal de autonomía tan extendido en nuestras sociedades? Se propone la noción de autonomía relacional como término que recoge ese entramado de relaciones y vínculos que posibilitan la libertad y la toma de decisiones propia, y que se adecua de manera más fiel a la realidad social en la que nos encontramos. Por un lado, la autonomía relacional pretende reflejar la red de relaciones que es constitutiva de la persona. Por otro, se desarrolla como concepto que da cuenta de la co-responsabilidad tanto del profesional como del ciudadano a la hora de que sea el paciente quien tome decisiones autónomasAbstract: The autonomy concept on which the Bioethics has been based traditionally comes from the liberal theory, and it articulates from a theoretical subject that little it has to do with the people. For this reason, in this article is exposed the necessity of reviewing and formulating the concept of autonomy for the Bioethics. Are there alternatives to the liberal model of autonomy so extended in our societies? It´s proposed the notion of relational autonomy like a term that gathers that framework of relations and bonds that make possible the freedom and the own decision making, and this is adapted more faithfully to the social reality in which we were. On the one hand, the relational autonomy tries to reflect the network of relations that is constituent of the person. On the other, it is developed like concept that gives account of the Co-responsibility of the professional and the citizen at the time of which the patient who makes independent decisions.

  1. La potestad reguladora de las Comunidades Autónomas en materia del ISD y su reflejo en las transmisiones de empresas familiares

    Directory of Open Access Journals (Sweden)

    Carlos Carbajo Nogal

    2011-06-01

    Full Text Available Las Comunidades Autónomas han establecido una serie de beneficios fiscales en el ISD, que se suman a las aplicables en el plano estatal y con las que comparten necesariamente protagonismo, cuyo análisis nos facilita una idea exacta del régimen fiscal aplicable en este impuesto a la transmisión de la empresa familia que no es uniforme en todos los Entes territoriales.The Autonomous Regions have established certain tax benefits in the ISD, which they add the applicable ones in the state plane and with those who share necessarily protagonism, which analysis facilitates to us an exact idea of the fiscal applicable regime in this tax to the transmission of the company family that is not uniform in all the territorial Entities.

  2. Cardiac Autonomic Control in Individuals With Down Syndrome

    Science.gov (United States)

    Goulopoulou, Styliani; Baynard, Tracy; Collier, Scott; Giannopoulou, Ifigenia; Figueroa, Arturo; Beets, Michael; Pitetti, Kenneth; Fernhall, Bo

    2006-01-01

    Our goal in this study was to compare cardiac autonomic control at rest between 50 individuals with Down syndrome and 24 control participants without disabilities. Resting autonomic function was assessed using analysis of heart rate variability. Participants with Down syndrome had reduced total heart rate variability, which indicates possible…

  3. ANTS: Exploring the Solar System with an Autonomous Nanotechnology Swarm

    Science.gov (United States)

    Clark, P. E.; Curtis, S.; Rilee, M.; Truszkowski, W.; Marr, G.

    2002-01-01

    ANTS (Autonomous Nano-Technology Swarm), a NASA advanced mission concept, calls for a large (1000 member) swarm of pico-class (1 kg) totally autonomous spacecraft to prospect the asteroid belt. Additional information is contained in the original extended abstract.

  4. Contingency Software in Autonomous Systems: Technical Level Briefing

    Science.gov (United States)

    Lutz, Robyn R.; Patterson-Hines, Ann

    2006-01-01

    Contingency management is essential to the robust operation of complex systems such as spacecraft and Unpiloted Aerial Vehicles (UAVs). Automatic contingency handling allows a faster response to unsafe scenarios with reduced human intervention on low-cost and extended missions. Results, applied to the Autonomous Rotorcraft Project and Mars Science Lab, pave the way to more resilient autonomous systems.

  5. Non-autonomous Degenerate KdV Systems

    OpenAIRE

    Turhan, Refik

    2002-01-01

    Non-autonomous degenerate KdV systems in (1+1) dimensions are considered for integrability classification. Integrability of the systems is associated with the existence of a recursion operator. Some new non-autonomous degenerate two-component KdV systems are found.

  6. Autonomous Systems, Robotics, and Computing Systems Capability Roadmap: NRC Dialogue

    Science.gov (United States)

    Zornetzer, Steve; Gage, Douglas

    2005-01-01

    Contents include the following: Introduction. Process, Mission Drivers, Deliverables, and Interfaces. Autonomy. Crew-Centered and Remote Operations. Integrated Systems Health Management. Autonomous Vehicle Control. Autonomous Process Control. Robotics. Robotics for Solar System Exploration. Robotics for Lunar and Planetary Habitation. Robotics for In-Space Operations. Computing Systems. Conclusion.

  7. Modeling of an autonomous microgrid for renewable energy sources integration

    DEFF Research Database (Denmark)

    Serban, I.; Teodorescu, Remus; Guerrero, Josep M.;

    2009-01-01

    The frequency stability analysis in an autonomous microgrid (MG) with renewable energy sources (RES) is a continuously studied issue. This paper presents an original method for modeling an autonomous MG with a battery energy storage system (BESS) and a wind power plant (WPP), with the purpose of...

  8. Effect of Sleep/Wake Cycle on Autonomic Regulation

    International Nuclear Information System (INIS)

    Objective: To evaluate the association between irregular sleep/wake cycle in shift workers and autonomic regulation. Study Design: Cross-sectional, analytical study. Place and Duration of Study: Dow University Hospital, Karachi, from August to November 2013. Methodology: All health care providers working in rotating shifts making a total (n=104) were included. Instrument was an integrated questionnaire applied to assess autonomic regulation, taken from Kroz et al. on scoring criteria, ranging from 18 - 54, where higher rating signifies strong autonomic regulation, indicating a stable Autonomic Nervous System (ANS) and vice versa. Participants were interviewed and their response was recorded by the investigator. Influence of sleep misalignment was measured quantitatively to extract index of autonomic activity. Results: There was a reduced trend in autonomic strength amongst shift workers. The mean score obtained on the Autonomic Scale was 37.8 ± 5.9. Conclusion: Circadian misalignment has an injurious influence on ANS which might be valuable in controlling autonomic dysfunction that leads to fatal triggers in rotating shift workers. (author)

  9. On the equivalence classes of linear non-autonomous systems *

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    In this paper, the equivalence classification of the linear non-autonomous dynamic systems near singularities is given. Under some conditions their equivalence classes are the same as the autonomous ones. Using a series of linear and nonlinear transforms, the equivalence classification is proved.

  10. Maladaptive autonomic regulation in PTSD accelerates physiological aging

    OpenAIRE

    Williamson, John B.; Porges, Eric C.; Damon eLamb; Porges, Stephen W.

    2015-01-01

    A core manifestation of posttraumatic stress disorder is a disconnection between physiological state and psychological and behavior processes necessary to adequately respond to environmental demands. Patients with PTSD experience oscillations in autonomic states that support either fight and flight behaviors or withdrawal, immobilization, and dissociation without an intervening calm state that would provide opportunities for positive social interactions. This defensive autonomic disposition...

  11. Autonomic Impairment in Borderline Personality Disorder: A Laboratory Investigation

    Science.gov (United States)

    Weinberg, Anna; Klonsky, E. David; Hajcak, Greg

    2009-01-01

    Recent research suggests that emotional dysfunction in psychiatric disorders can be reflected in autonomic abnormalities. The present study examines sympathetic and parasympathetic autonomic nervous system activity in individuals with Borderline Personality Disorder (BPD) before, during, and following a social stressor task. Data were obtained…

  12. Symptoms of Autonomic Dysfunction in Human Immunodeficiency Virus

    OpenAIRE

    Chow, Dominic; Nakamoto, Beau K.; Sullivan, Katherine; Sletten, David M; Fujii, Satomi; Umekawa, Sari; Kocher, Morgan; Kallianpur, Kalpana J; Shikuma, Cecilia M.; Low, Phillip

    2015-01-01

    This retrospective study evaluated the frequencies of symptoms associated with autonomic dysfunction in human immunodeficiency virus (HIV)-infected patients on stable combined antiretroviral therapy. Patients infected with HIV reported higher frequencies of dysautonomia symptoms compared with HIV-negative patients, particularly in the autonomic domains related to urinary, sleep, gastroparesis, secretomotor, pupillomotor, and male sexual dysfunction.

  13. Las narcodemocracias andinas

    Directory of Open Access Journals (Sweden)

    Olivier DABÈNE

    2009-11-01

    Full Text Available RESUMEN: Los países de América Latina están afectados en diferentes aspectos por el tráfico de drogas. En especial, en los países andinos, esta actividad ha condicionado de manera decisiva el tipo de régimen democrático iniciado en algún caso en la década de 1980, como Perú o Bolivia, o el régimen colombiano. El autor califica a estos regímenes como narcodemocracias por los efectos del tráfico de drogas no sólo en el orden social y económico, que analiza de forma profunda, sino por la politización del narcotráfico. Las respuestas de las democracias han sido bien distintas en los tres casos analizados, afectando, sin embargo, en todos ellos, a la gobernabilidad de las mismas y a su legitimidad.ABSTRACT: Latin American countries are affected by narcotrafico in different aspects. Particularly, in Andean countries, this activity has deeply conditioned the type of democratic regime installed in some cases in the eighties, as Perou and Bolivia, or the colombian regimen. The author characterizes these regimes as narcodemocracias by effects of narcotrafico in them, not only in social and economic arenas, but also by the politization of narcotrafico. Responses of democracies have been very different in these cases analyzed in the article. Nevertheless, in all of them, governability and legitmity of democracy are affected.

  14. 12th International Conference on Intelligent Autonomous Systems

    CERN Document Server

    Cho, Hyungsuck; Yoon, Kwang-Joon; Lee, Jangmyung

    2013-01-01

    Intelligent autonomous systems are emerged as a key enabler for the creation of a new paradigm of services to humankind, as seen by the recent advancement of autonomous cars licensed for driving in our streets, of unmanned aerial and underwater vehicles carrying out hazardous tasks on-site, and of space robots engaged in scientific as well as operational missions, to list only a few. This book aims at serving the researchers and practitioners in related fields with a timely dissemination of the recent progress on intelligent autonomous systems, based on a collection of papers presented at the 12th International Conference on Intelligent Autonomous Systems, held in Jeju, Korea, June 26-29, 2012. With the theme of “Intelligence and Autonomy for the Service to Humankind, the conference has covered such diverse areas as autonomous ground, aerial, and underwater vehicles, intelligent transportation systems, personal/domestic service robots, professional service robots for surgery/rehabilitation, rescue/security ...

  15. Multi-UAV autonomous collaborative behaviors for convoy protection

    Science.gov (United States)

    Chen, Y.-L.; Peot, M.; Lee, J.; Sundareswaran, V.; Altshuler, T.

    2007-04-01

    Unmanned Air Vehicles (UAVs) are expected to dramatically alter the way future battles are fought. Autonomous collaborative operation of teams of UAVs is a key enabler for efficient and effective deployment of large numbers of UAVs under the U. S. Army's vision for Force Transformation. Autonomous Collaborative Mission Systems (ACMS) is an extensible architecture and collaborative behavior planning approach to achieve multi-UAV autonomous collaborative capability. Under this architecture, a rich set of autonomous collaborative behaviors can be developed to accomplish a wide range of missions. In this article, we present our simulation results in applying various autonomous collaborative behaviors developed in the ACMS to an integrated convoy protection scenario using a heterogeneous team of UAVs.

  16. 12th International Conference on Intelligent Autonomous Systems (IAS-12)

    CERN Document Server

    Yoon, Kwang-Joon; Lee, Jangmyung; Frontiers of Intelligent Autonomous Systems

    2013-01-01

    This carefully edited volume aims at providing readers with the most recent progress on intelligent autonomous systems, with its particular emphasis on intelligent autonomous ground, aerial and underwater vehicles as well as service robots for home and healthcare under the context of the aforementioned convergence. “Frontiers of Intelligent Autonomous Systems” includes thoroughly revised and extended papers selected from the 12th International Conference on Intelligent Autonomous Systems (IAS-12), held in Jeju, Korea, June 26-29, 2012. The editors chose 35 papers out of the 202 papers presented at IAS-12 which are organized into three chapters: Chapter 1 is dedicated to autonomous navigation and mobile manipulation, Chapter 2 to unmanned aerial and underwater vehicles and Chapter 3 to service robots for home and healthcare. To help the readers to easily access this volume, each chapter starts with a chapter summary introduced by one of the editors: Chapter 1 by Sukhan Lee, Chapter 2 by Kwang Joon Yoon and...

  17. Las computadoras inteligentes

    OpenAIRE

    Lara-Rojo, Fernando

    1991-01-01

    Se habla de la inteligencia artificial como un campo de la ciencia de computación que tiene por objetivo construir computadoras capaces de hacerse cargo de tareas para cuya realización se supone que es necesario contar con cierto grado de “inteligencia”. Se explora el panorama tecnológico y de investigación, y se plantean algunas de las dificultades a enfrentar. Incluye obra fotográfica de Durruty de alba, Rigo Moreno y Pablo Araiza, reproducida en blanco y negro.

  18. Las pandillas transnacionales centroamericanas

    OpenAIRE

    Ortiz Vila, Ignacio

    2012-01-01

    En Centroamérica las pandillas transnacionales han tomado relevancia en el en la región en la medida que fueron expandiendo sus redes por todo el territorio. Entre sus actividades se encuentran: los secuestros, la trata de personas, el sicariato y la distribución de drogas. En la actualidad debería ser prioridad para la región encontrar una solución a través del trabajo coordinando y compartiendo experiencias que resulten efectivas para la resolución de esta problematica. Estos nuevos actores...

  19. Las culturas no existen

    OpenAIRE

    Joel Feliu i Samuel-Lajeunesse

    2004-01-01

    Tras un somero recordatorio del hecho, a menudo olvidado, de que la cultura no es una realidad social sino tan solo un concepto, el artículo pretende argumentar en pro de la inexistencia de tal entidad (a pesar de las apariencias). La pregunta principal a la que se intenta responder es cual es el papel ideológico que tiene la idea de cultura, es decir ¿qué efectos de construcción de realidad genera? Para ello se realiza una crítica del concepto y de sus usos argumentando que tanto el concepto...

  20. Cardiovascular autonomic function in Cushing's syndrome.

    Science.gov (United States)

    Fallo, F; Maffei, P; Dalla Pozza, A; Carli, M; Della Mea, P; Lupia, M; Rabbia, F; Sonino, N

    2009-01-01

    Cardiac autonomic dysfunction is associated with increased cardiovascular mortality. No data on sympathovagal balance are available in patients with Cushing's syndrome, in whom cardiovascular risk is high. We studied 10 patients with newly diagnosed Cushing's syndrome (1 male/9 females; age mean+/-SD, 47+/-10 yr) and 10 control subjects matched for age, sex, body mass index, and cardiovascular risk factors. In both groups there were 7 patients with arterial hypertension, 3 with diabetes mellitus, and 2 with obesity. Cardiac autonomic function was evaluated by analysis of short time heart rate variability (HRV) measures in frequency domain over 24-h, daytime, and nighttime. The 24-h ambulatory blood pressure monitoring and echocardiography were also performed. In comparison with controls, patients with Cushing's syndrome had lower 24-h (1.3+/-0.6 vs 3.7+/-1.5, mean+/-SD, p<0.01), daytime (2.0+/-1.4 vs 4.5+/-1.6, p<0.01), and night-time (1.0+/-0.4 vs 3.5+/-2.3, p<0.01) low-frequency/ high frequency (LF/HF) power ratio. In the presence of similar LF power, the difference was due to elevation in HF power in Cushing's syndrome compared to controls: 24-h, 12.7+/-6.7 vs 5.8+/-2.8, p<0.01; daytime, 10.2+/-7.3 vs 4.5+/-2.1, p<0.05; nighttime, 14.2+/-7.0 vs 7.8+/-4.7, p<0.05. Eight Cushing patients vs 4 controls had a non-dipping blood pressure profile. At echocardiography, Cushing patients had a greater left ventricular mass index and/or relative wall thickness, and impaired diastolic function, compared with controls. Compared to controls, patients with Cushing's syndrome showed a sympathovagal imbalance, characterized by a relatively increased parasympathetic activity. Whether this autonomic alteration is meant to counterbalance cortisol-induced effects on blood pressure and cardiac structure/function or has a different pathophysiological significance is still unknown. PMID:19337014